Chapter 27, 35, 37, 38 Antidepressant, hypnotics, sedative, and anti-seizure medications.

10. A patient with a new-onset seizure disorder receives a prescription for phenobarbital. The patient reports being concerned about the sedative side effects of this drug. Which response by the nurse is correct? a. "Phenobarbital doses for seizures are nonsedating." b. "This is a short-acting barbiturate, so sedation wears off quickly." c. "Tolerance to the sedative effects will develop in a few weeks." d. "You may actually experience paradoxical effects of euphoria."

ANS: A

11. An older adult patient who is to begin taking imipramine [Tofranil] asks the nurse when the drug should be taken. The nurse will instruct the patient to: a. divide the daily dose into two equal doses 12 hours apart. b. take the entire dose at bedtime to minimize sedative effects. c. take the medication once daily in the late afternoon. d. take the medication once daily in the morning.

ANS: A

14. A patient who has been taking an SSRI tells the nurse that the drug has caused reduced sexual performance, weight gain, and sedation. The nurse will suggest that the patient ask the provider about using which drug? a. Bupropion [Wellbutrin] b. Imipramine [Tofranil] c. Isocarboxazid [Marplan] d. Trazodone [Oleptro]

ANS: A

5. A patient takes temazepam [Restoril] for insomnia. The patient tells the nurse that a recent telephone bill lists several calls to friends that the patient does not remember making. What will the nurse do? a. Ask the patient about any alcohol consumption in conjunction with the benzodiazepine. b. Contact the prescriber to request an order for a benzodiazepine with a shorter duration. c. Reassure the patient that this is most likely caused by a paradoxical reaction to the benzodiazepine. d. Tell the patient that this is an example of anterograde amnesia, which is an expected effect of the benzodiazepine.

ANS: A

8. A neonate is born to a patient who reports taking venlafaxine [Effexor XR]. The nurse caring for the infant will observe the infant for: a. irritability, tremor, and respiratory distress. b. poor appetite and disturbed sleeping patterns. c. serotonin syndrome. d. sustained mydriasis.

ANS: A

8. A patient who has been taking alprazolam [Xanax] to treat generalized anxiety disorder (GAD) reports recently stopping the medication after symptoms have improved but reports having feelings of panic and paranoia. Which initial action by the nurse is correct? a. Ask the patient if the medication was stopped abruptly. b. Instruct the patient to resume taking the alprazolam. c. Notify the provider that the patient is experiencing a relapse. d. Suggest that the patient discuss taking buspirone [Buspar] with the provider.

ANS: A

1. A nurse is discussing the use of benzodiazepines as sedative-hypnotic agents with a group of nursing students. A student asks about the actions of these drugs in the central nervous system. The nurse makes which correct statement? a. "Benzodiazepines affect the hippocampus and the cerebral cortex to cause anterograde amnesia." b. "Benzodiazepines depress neuronal functions by acting at a single site in the brain." c. "Benzodiazepines induce muscle relaxation by acting on sites outside the central nervous system." d. "Benzodiazepines promote sleep through effects on the limbic system."

ANS: A All beneficial and most adverse effects of benzodiazepines occur from depressant actions in the central nervous system (CNS); the various effects depend on the site of action. Anterograde amnesia is the result of effects in the hippocampus and the cerebral cortex. Benzodiazepines act at multiple sites in the CNS. Muscle relaxant effects are the result of actions on supraspinal motor areas in the CNS. Benzodiazepines promote sleep through effects on cortical areas and on the sleep-wakefulness "clock." PTS: 1

2. A nurse is performing an admission assessment on a patient. The patient reports taking alprazolam [Xanax] for "nerves." The nurse knows that this patient is most likely being treated for which condition? a. Generalized anxiety disorder b. Obsessive-compulsive disorder (OCD) c. Panic disorder d. Post-traumatic stress disorder (PTSD)

ANS: A Benzodiazepines are the first-choice drugs for anxiety, and alprazolam and lorazepam are prescribed most often. Selective serotonin reuptake inhibitors (SSRIs) are the first-line drugs for the treatment of OCD. Panic disorder is treated with any of the three classes of antidepressants: SSRIs, tricyclic antidepressants (TCAs), and monoamine oxidase inhibitors (MAOIs). Research has not shown any drug to be effective in the treatment of PTSD, although two SSRIs have been approved for use for this disorder. PTS: 1

4. A nurse provides teaching for a patient with a newly diagnosed partial complex seizure disorder who is about to begin therapy with antiepileptic drugs (AEDs). Which statement by the patient indicates understanding of the teaching? a. "Even with an accurate diagnosis of my seizures, it may be difficult to find an effective drug." b. "I will soon know that the drugs are effective by being seizure free for several months." c. "Serious side effects may occur, and if they do, I should stop taking the medication." d. "When drug levels are maintained at therapeutic levels, I can expect to be seizure free."

ANS: A Even with an accurate diagnosis of seizures, many patients have to try more than one AED to find a drug that is effective and well tolerated. Unless patients are being treated for absence seizures, which occur frequently, monitoring of the clinical outcome is not sufficient for determining effectiveness, because patients with convulsive seizures often have long seizure-free periods. Serious side effects may occur, but withdrawing a drug precipitously can induce seizures. Not all patients have seizure control with therapeutic drug levels, because not all medications work for all patients.

3. A nurse is discussing partial versus generalized seizures with a group of nursing students. Which statement by a student indicates understanding of the teaching? a. "Febrile seizures are a type of generalized tonic-clonic seizure." b. "Generalized seizures are characterized by convulsive activity." c. "Partial seizures do not last as long as generalized seizures." d. "Patients having partial seizures do not lose consciousness."

ANS: A Febrile seizures typically manifest as a tonic-clonic seizure of short duration and are a type of generalized seizure. Generalized seizures may be convulsive or nonconvulsive. Partial seizures may last longer than some types of generalized seizures. Patients with complex partial seizures and secondarily generalized seizures, which are types of partial seizures, may lose consciousness. PTS: 1

11. A patient who is taking oral contraceptives begins taking valproic acid [Depakote] for seizures. After a week of therapy with valproic acid, the patient tells the nurse that she is experiencing nausea. What will the nurse do? a. Ask the patient if she is taking the valproic acid with food, because taking the drug on an empty stomach can cause gastrointestinal side effects. b. Contact the provider to request an order for a blood ammonia level, because hyperammonemia can occur with valproic acid therapy. c. Suggest that the patient perform a home pregnancy test, because valproic acid can reduce the efficacy of oral contraceptives. d. Suspect that hepatotoxicity has occurred, because this is a common adverse effect of valproic acid.

ANS: A Gastrointestinal effects, including nausea, vomiting, and indigestion, are common with valproic acid and can be minimized by taking the drug with food or using an enteric-coated product. Hyperammonemia can occur when valproic acid is combined with topiramate. Signs of pregnancy usually do not occur within a week, so this is less likely. Hepatotoxicity is a rare adverse effect. PTS: 1

8. A nurse counsels a patient who is to begin taking phenytoin [Dilantin] for epilepsy. Which statement by the patient indicates understanding of the teaching? a. "I should brush and floss my teeth regularly." b. "Once therapeutic blood levels are reached, they are easy to maintain." c. "I can consume alcohol in moderation while taking this drug." d. "Rashes are a common side effect but are not serious."

ANS: A Gingival hyperplasia occurs in about 20% of patients who take phenytoin. It can be minimized with good oral hygiene, so patients should be encouraged to brush and floss regularly. Because small fluctuations in phenytoin levels can affect response, maintaining therapeutic levels is not easy. Patients should be cautioned against consuming alcohol while taking phenytoin. Rashes can be serious and should be reported immediately. PTS: 1

6. During an admission history, a patient reports a frequent need to return to a room multiple times to make sure an iron or other appliance is unplugged. What does the nurse understand about this patient's behavior? a. It helps the patient reduce anxiety about causing a fire. b. It usually is treated with alprazolam [Xanax]. c. It seems perfectly normal to the patient. d. It will best respond to deep brain stimulation.

ANS: A Patients with OCD have compulsive behaviors, such as repeatedly checking to make sure appliances have been unplugged. The compulsion is a ritualized behavior resulting from obsessive anxiety or fear that something bad will happen, such as starting a fire with an overheated appliance. Alprazolam is not a first-line drug for treating OCD. Patients usually understand that compulsive behaviors are excessive and senseless but are unable to stop. Deep brain stimulation is indicated for patients in whom other treatments have failed; its effectiveness at reducing symptoms has been shown to be about 40%. PTS: 1

5. A patient describes feelings of anxiety and fear when speaking in front of an audience, and is having difficulty at work because of an inability to present information at meetings 3 or 4 times each year. The patient is reluctant to take long-term medications. The nurse will expect the provider to order which treatment? a. Alprazolam [Xanax] as needed b. Cognitive behavioral therapy c. Paroxetine [Paxil] d. Psychotherapy

ANS: A This patient is describing social anxiety disorder; the symptoms are related to performance only and are not generalized to all social situations. Because this patient must speak in front of an audience only 3 or 4 times per year, a PRN medication can be used. Cognitive behavioral therapy is used for OCD. Paroxetine must be used continuously for at least 1 year. Psychotherapy can be used but is more effective when used in combination with drugs.

1. A patient shows loss of consciousness, jaw clenching, contraction and relaxation of muscle groups, and periods of cyanosis. The nurse correctly identifies this as which type of seizure? a. Tonic-clonic b. Petit mal c. Myoclonic d. Atonic

ANS: A Tonic-clonic seizures (or grand mal seizures) are considered generalized seizures and are manifested by a loss of consciousness, jaw clenching, muscle relaxation alternating with muscle contractions, and periods of cyanosis. Absence seizures (or petit mal seizures) are characterized by loss of consciousness for a brief period and usually involve eye blinking and staring into space. Myoclonic seizures consist of sudden contractions that may be limited to one limb or may involve the entire body. Atonic seizures are characterized by sudden loss of muscle tone. PTS: 1

15. A first-time parent of a 6-week-old infant tells the nurse that she feels anxious and sad, cries a lot, and has difficulty sleeping. What will the nurse do? a. Ask her to complete the Edinburgh Postnatal Depression Scale. b. Reassure her that the "baby blues" are normal after childbirth. c. Suggest that she get more sleep and try to increase her activity. d. Suggest that she talk to her provider about using an SSRI.

ANS: A Women who experience depressive symptoms after childbirth can be screened using a quick test: the Edinburgh Postnatal Depression Scale, which may be administered 6 to 8 weeks after delivery. Reassuring her that her feelings are normal does not acknowledge her concerns; also, without objective screening, this reassurance may not be warranted. Increased sleep and activity may help, but screening is necessary to determine the severity of the depression. Until the patient is diagnosed as having postpartum depression, an SSRI is not indicated. PTS: 1

13. A patient complains of chronic insomnia and reports being tired all the time. The patient is reluctant to try pharmacologic remedies and asks the nurse what to do. What will the nurse suggest? a. "Eat a large meal in the evening to induce drowsiness." b. "Get out of bed for a while if you can't fall asleep." c. "Have a glass of wine at bedtime to relax." d. "Take a short nap early in the afternoon every day."

ANS: B

2. A nurse is assessing a patient who becomes motionless and seems to stare at the wall and then experiences about 60 seconds of lip smacking and hand wringing. What should the nurse do? a. Ask the patient about a history of absence seizures. b. Contact the provider to report symptoms of a complex partial seizure. c. Notify the provider that the patient has had a grand mal seizure. d. Request an order for intravenous diazepam [Valium] to treat status epilepticus.

ANS: B

5. A patient has been taking fluoxetine [Prozac] for 2 years and reports feeling cured of depression. The nurse learns that the patient is sleeping well, participates in usual activities, and feels upbeat and energetic most of the time. The patient's weight has returned to normal. The patient reports last having symptoms of depression at least 9 months ago. What will the nurse tell this patient? a. Indefinite drug therapy is necessary to maintain remission. b. Discuss gradual withdrawal of the medication with the provider. c. Stop the drug while remaining alert for the return of symptoms. d. Take a drug holiday to see whether symptoms recur.

ANS: B

9. A patient is to begin taking phenytoin [Dilantin] for seizures. The patient tells the nurse that she is taking oral contraceptives. What will the nurse tell the patient? a. She may need to increase her dose of phenytoin while taking oral contraceptives. b. She should consider a different form of birth control while taking phenytoin. c. She should remain on oral contraceptives, because phenytoin causes birth defects. d. She should stop taking oral contraceptives, because they reduce the effectiveness of phenytoin.q

ANS: B Because phenytoin can reduce the effects of oral contraceptive pills (OCPs) and because avoiding pregnancy is desirable when taking phenytoin, patients should be advised to increase the dose of oral contraceptives or use an alternative method of birth control. Increasing the patient's dose of phenytoin is not necessary; OCPs do not affect phenytoin levels. Phenytoin is linked to birth defects; OCPs have decreased effectiveness in patients treated with phenytoin; and the patient should be advised to increase the OCP dose or to use an alternative form of birth control. OCPs do not alter the effects of phenytoin. PTS: 1

9. A provider has indicated that a serotonin/norepinephrine reuptake inhibitor (SNRI) will be prescribed for a patient who is experiencing major depression. When conducting a pretreatment health history, the nurse learns that the patient has a recent history of alcohol abuse. Which SNRI would be contraindicated for this patient? a. Desvenlafaxine [Pristiq] b. Duloxetine [Cymbalta] c. Escitalopram [Lexapro] d. Venlafaxine [Effexor SR]

ANS: B Duloxetine can cause elevation of serum transaminases, indicating liver disease. Patients with existing liver disease or alcohol abuse should not receive this drug. This side effect is not likely with desvenlafaxine or venlafaxine. Escitalopram is an SSRI. PTS: 1

5. A nurse is caring for a patient who has been taking an antiepileptic drug for several weeks. The nurse asks the patient if the therapy is effective. The patient reports little change in seizure frequency. What will the nurse do? a. Ask the patient to complete a seizure frequency chart for the past few weeks. b. Contact the provider to request an order for serum drug levels. c. Reinforce the need to take the medications as prescribed. d. Request an order to increase the dose of the antiepileptic drug.

ANS: B If medication therapy is not effective, it is important to measure serum drug levels of the medication to determine whether therapeutic levels have been reached and to help monitor patient compliance. Patients should be asked at the beginning of therapy to keep a seizure frequency chart to help deepen their involvement in therapy; asking for historical information is not helpful. Until it is determined that the patient is not complying, the nurse should not reinforce the need to take the medication. Until the drug level is known, increasing the dose is not indicated. PTS: 1

12. A nurse is obtaining a health history from an older adult patient in an outpatient clinic. The patient reports chronic difficulty falling asleep and staying asleep. The nurse knows that the best treatment for this patient will be: a. alternative medications. b. improved sleep hygiene. c. short-term barbiturates. d. triazolam [Halcion].

ANS: B Research has shown that cognitive behavioral therapy is superior to drug therapy for short-term and long-term management of chronic insomnia in older adults. Alternative remedies have not been proven effective. Barbiturates may elicit paradoxical effects in elderly patients. Triazolam does not help to maintain sleep. PTS: 1

13. A patient who has been taking phenobarbital for epilepsy begins taking valproic acid [Depakote] as adjunct therapy. The nurse notes that the patient is very drowsy. What will the nurse do? a. Explain to the patient that tolerance to sedation eventually will develop. b. Notify the prescriber, and request an order to reduce the dose of phenobarbital. c. Notify the prescriber of the need to increase the dose of valproic acid. d. Request an order for liver function tests to monitor for hepatotoxicity.

ANS: B Valproic acid competes with phenobarbital for drug-metabolizing enzymes and can increase plasma levels of phenobarbital by approximately 40%. When this combination is used, the dose of phenobarbital should be reduced. Increasing the dose of valproic acid would compound the problem. Patients taking phenobarbital alone experience sedation, which diminishes as tolerance develops. Liver toxicity is a rare adverse effect of valproic acid and is marked by symptoms of nausea, vomiting, and malaise, not drowsiness. PTS: 1

12. A child is diagnosed with absence seizures, and the prescriber orders ethosuximide [Zarontin]. When teaching the child's parents about dosage adjustments for this drug, the nurse will stress the importance of: a. frequent serum drug level monitoring. b. learning as much as possible about the disorder and its treatment. c. recording the number of seizures the child has each day. d. reporting dizziness and drowsiness to the provider.

ANS: C

7. A patient with a seizure disorder is admitted to the hospital and has a partial convulsive episode shortly after arriving on the unit. The patient has been taking phenytoin [Dilantin] 100 mg 3 times daily and oxcarbazepine [Trileptal] 300 mg twice daily for several years. The patient's phenytoin level is 8.6 mcg/mL, and the oxcarbazepine level is 22 mcg/mL. The nurse contacts the provider to report these levels and the seizure. What will the nurse expect the provider to order? a. A decreased dose of oxcarbazepine b. Extended-release phenytoin c. An increased dose of phenytoin d. Once-daily dosing of oxcarbazepine

ANS: C

8. A patient is brought to the emergency department by friends, who say that they were at a party where alcohol and a mix of barbiturates and benzodiazepines were all available. They tell the nurse that the patient was among the first to arrive at the party, which started several hours ago. The patient is nonresponsive and has pinpoint pupils and respirations of 6 breaths per minute. After oxygen has been administered, the nurse should prepare the patient for which intervention? a. A central nervous system stimulant and IV fluids b. Activated charcoal and flumazenil [Romazicon] c. Maintaining adequate oxygenation to the brain d. Naloxone [Narcan] and a cathartic

ANS: C Because time has elapsed, enough medication is present in the system to warrant treatment for systemic effects. A central nervous system stimulant is contraindicated, and intravenous fluids do not address the overdose. Although activated charcoal may assist in the absorption of medication in the gut, flumazenil will be effective only for the benzodiazepines. Naloxone, a narcotic antagonist, is not effective for barbiturates and benzodiazepines. PTS: 1

6. A patient has been taking an SSRI antidepressant for major depression and reports having headaches and jaw pain. What will the nurse tell the patient? a. This represents an irreversible extrapyramidal side effect. b. Discuss discontinuing the antidepressant with the provider. c. Discuss these symptoms with a dentist. d. Try stress-relieving methods and relaxation techniques.

ANS: C Bruxism is a side effect of SSRIs and can result in headache and jaw pain. Patients who experience these signs should be evaluated for bruxism by a dentist, who can determine whether the patient may benefit from use of a mouth guard. Headache and jaw pain are not signs of extrapyramidal side effects. Discontinuing the antidepressant is not indicated, because depression may return. Stress-relieving methods and relaxation techniques are not recommended, because these symptoms occur during sleep. PTS: 1

15. A child who receives valproic acid [Depakote] begins taking lamotrigine [Lamictal] because of an increase in the number of seizures. The nurse will observe this child closely for which symptom? a. Angioedema b. Hypohidrosis c. Rash d. Psychosis

ANS: C Lamotrigine can cause life-threatening rashes, such as Stevens-Johnson syndrome and toxic epidermal necrolysis, and this risk increases with concurrent use of valproic acid. Angioedema is an adverse effect associated with pregabalin. Hypohidrosis and psychosis are associated with topiramate. PTS: 1

12. A patient who has fibromyalgia is diagnosed with major depression. The provider orders a TCA. The nurse will teach this patient to: a. avoid foods containing tyrosine. b. consume alcohol in moderation. c. sit or lie down when feeling lightheaded. d. take the medication in the morning.

ANS: C Orthostatic hypotension can occur with TCAs. Patients should be advised to sit or lie down if they feel lightheaded to prevent falls. Foods containing tyrosine cause adverse effects in patients taking MAOIs. Patients taking TCAs should be counseled to avoid all alcohol. Because TCAs cause sedation, the medication should be taken at bedtime. PTS: 1

14. A nurse is providing teaching to a patient newly diagnosed with partial seizures who will begin taking oxcarbazepine [Trileptal]. The patient also takes furosemide [Lasix] and digoxin [Lanoxin]. Which statement by the patient indicates understanding of the teaching? a. "I may need to increase my dose of Trileptal while taking these medications." b. "I may develop a rash and itching, but these are not considered serious." c. "I should report any nausea, drowsiness, and headache to my provider." d. "I should use salt substitutes instead of real salt while taking these drugs."

ANS: C Oxcarbazepine can cause clinically significant hyponatremia in 2.5% of patients. If oxcarbazepine is combined with other drugs that reduce sodium, the patient should be monitored. Signs of hyponatremia include nausea, drowsiness, confusion, and headache, and patients should be taught to report these symptoms. Increasing the dose of oxcarbazepine is not indicated. Rashes can indicate a serious drug reaction, and providers should be notified so that the oxcarbazepine can be withdrawn. Salt substitutes would compound the problem of hyponatremia.

13. A patient taking an MAOI is seen in the clinic with a blood pressure of 170/96 mm Hg. What will the nurse ask this patient? a. Whether any antihypertensive medications are used b. Whether the patient drinks grapefruit juice c. To list all foods eaten that day d. Whether SSRIs are taken in addition to the MAOI

ANS: C Patients taking an MAOI should be counseled to follow strict dietary restrictions and to avoid all foods containing tyramine. Patients who consume such foods when taking an MAOI experience a hypertensive episode. Antihypertensive medications, given with an MAOI, will result in hypotension. Grapefruit juice does not alter the metabolism of an MAOI. SSRIs and MAOIs, when administered together, cause a serotonin syndrome. PTS: 1

6. A patient has been taking high doses of clorazepate [Tranxene] for several months for an anxiety disorder. The nurse assessing the patient observes that the patient is agitated, euphoric, and anxious. What will the nurse do? a. Double-check the chart to make sure the last dose was given. b. Request an order for a longer-acting benzodiazepine. c. Suspect a possible paradoxical reaction to the clorazepate. d. Withhold the next dose until a drug level can be drawn.

ANS: C Patients taking benzodiazepines for anxiety sometimes develop paradoxical responses to the drug, which include insomnia, excitation, euphoria, heightened anxiety, and rage. A missed dose would trigger withdrawal symptoms, which would include anxiety, insomnia, sweating, tremors, and dizziness. Because this is a paradoxical reaction to the drug, a longer-acting drug would make the symptoms worse. This is not caused by overdose, which would manifest as drowsiness, lethargy, and confusion, so a drug level is not warranted. PTS: 1

4. A young adult patient has been taking an antidepressant medication for several weeks and reports having increased thoughts of suicide. The nurse questions further and learns that the patient has attempted suicide more than once in the past. The patient identifies a concrete plan for committing suicide. The nurse will contact the provider to discuss: a. changing the medication to another drug class. b. discontinuing the medication immediately. c. hospitalizing the patient for closer monitoring. d. requiring more frequent clinic visits for this patient.

ANS: C Patients with depression often think of suicide, and during treatment with antidepressants, these thoughts often increase for a time. Patients whose risk of suicide is especially high should be hospitalized. All antidepressants carry this risk, so changing medication is not recommended. Discontinuing the medication is not recommended. More frequent clinic visits are recommended for patients with a low to moderate risk of suicide. PTS: 1

16. A woman who is nursing a newborn develops postpartum depression and her provider orders sertraline [Zoloft] to treat her symptoms. The patient is concerned about the safety of this medication for her infant. What will the nurse tell her about this medication? a. To stop nursing while taking the medication b. To expect symptoms of colic and poor weight gain in the baby c. That sertraline is safer than other antidepressants for nursing mothers d. To ask her provider about switching to fluoxetine [Prozac] instead

ANS: C Sertraline is safer than other antidepressants for nursing women when used to treat postpartum depression. It is not necessary for her to stop nursing while taking the medication. Colic and poor weight gain occur with fluoxetine, which is not safe for nursing mothers. PTS: 1

1. A patient taking fluoxetine [Prozac] complains of decreased sexual interest. A prescriber orders a "drug holiday." What teaching by the nurse would best describe a drug holiday? a. "Cut the tablet in half anytime to reduce the dosage." b. "Discontinue the drug for 1 week." c. "Don't take the medication on Friday and Saturday." d. "Take the drug every other day."

ANS: C Sexual dysfunction may be managed by having the patient take a drug holiday, which involves discontinuing medication on Fridays and Saturdays. Cutting the tablet in half anytime to reduce the dosage is an inappropriate way to manage drug administration effectively. In addition, it does not describe a drug holiday. The patient should not take the drug every other day, nor should it be discontinued for a week at a time, because this would diminish the therapeutic levels of the drug, thereby minimizing the therapeutic effects. In addition, neither of those options describe a drug holiday. PTS: 1

10. A nurse is teaching a group of nursing students about tricyclic antidepressants (TCAs). Which statement by a student indicates a need for further teaching? a. "TCAs block receptors for histamine, acetylcholine, and norepinephrine." b. "TCAs block the uptake of norepinephrine and 5-HT." c. "TCAs have many side effects, but none of them are serious." d. "TCAs have other uses than for depression."

ANS: C TCAs can adversely affect cardiac function, and these effects can be serious in patients with pre- existing cardiac impairment. TCAs do block receptors for histamine, acetylcholine, and norepinephrine; they do block the uptake of norepinephrine and 5-HT; and they do have other uses besides depression. PTS: 1

6. A patient with a form of epilepsy that may have spontaneous remission has been taking an AED for a year. The patient reports being seizure free for 6 months and asks the nurse when the drug can be discontinued. What will the nurse tell the patient? a. AEDs must be taken for life to maintain remission. b. Another AED will be substituted for the current AED. c. The provider will withdraw the drug over a 6- to 12-week period. d. The patient should stop taking the AED now and restart the drug if seizures recur.

ANS: C The most important rule about withdrawing AEDs is that they should be withdrawn slowly over 6 weeks to several months to reduce the risk of status epilepticus (SE). AEDs need not be taken for life if seizures no longer occur. Substituting one AED for another to withdraw AED therapy is not recommended. Stopping an AED abruptly increases the risk of SE. PTS: 1

7. A patient is diagnosed with anxiety after describing symptoms of tension, poor concentration, and difficulty sleeping that have persisted for over 6 months. Which medication will the nurse expect the provider to order for this patient? a. Alprazolam [Xanax] b. Amitriptyline [Elavil] c. Buspirone [Buspar] d. Paroxetine [Paxil]

ANS: C This patient has symptoms of generalized anxiety disorder (GAD) that are not acute or severe. Buspirone is as effective as benzodiazepines but without causing CNS depression or having the same abuse potential. Symptoms develop slowly, which is acceptable in this case, since symptoms are not acute or severe. Alprazolam is a benzodiazepine and would be used in the short term to treat acute, severe anxiety. Amitriptyline is a TCA used to treat panic disorder. Paroxetine is an antidepressant used as a second-line drug for GAD. PTS: 1

2. A patient whose spouse has died recently reports feeling down most of each day for the past 2 months. On further questioning, the nurse learns that the patient has quit participating in church and social activities, has difficulty falling asleep, and has lost 5 lb. The patient reports feeling tired and confused all the time but does not have suicidal thoughts. What does the nurse suspect? a. Grief and sadness b. Hypomania c. Major depression d. Situational depression

ANS: C This patient has symptoms of major depression, which include depressed mood, loss of pleasure in usual activities, insomnia, weight loss, and feelings of fatigue. For a diagnosis of major depression, these symptoms must be present most of the day, nearly every day, for at least 2 weeks. Grief and sadness and situational depression are common responses to the death of a loved one, but this patient's symptoms go beyond this normal response. This patient does not show signs of hypomania.

4. A patient reports having occasional periods of tremors, palpitations, nausea, and a sense of fear, which usually dissipate within 30 minutes. To treat this condition, the nurse anticipates the provider will prescribe a drug in which drug class? a. Benzodiazepines b. Monoamine oxidase inhibitors c. Selective serotonin reuptake inhibitors d. Tricyclic antidepressants

ANS: C This patient is showing characteristics of panic disorder. All three major classes of antidepressants are effective, but selective serotonin reuptake inhibitors are first-line drugs. Benzodiazepines are second-line drugs and are rarely used because of their abuse potential. MAOIs are effective but are difficult to use because of side effects and drug and food interactions. Tricyclic antidepressants are second-line drugs, and their use is recommended only after a trial of at least one SSRI has failed.

11. A patient with a history of depression and suicidal ideation is taking fluoxetine [Prozac]. The patient reports difficulty maintaining sleep and is prescribed secobarbital [Seconal] as a sedative- hypnotic. The nurse preparing this patient for discharge from the hospital will: a. contact the provider to suggest an order for ramelteon [Rozerem]. b. instruct the patient to use alcohol in moderation. c. request an order to change to trazodone [Desyrel] for sleep. d. suggest that the patient try alternative remedies for sleep.

ANS: C Trazodone is an atypical antidepressant with sedative actions and can be used to prolong sleep duration. It is useful for treating insomnia related to antidepressants such as Prozac. Ramelteon is not a drug of choice to treat patients who have difficulty maintaining sleep. Patients who are depressed or at increased risk for suicide should not take barbiturates, because overdose can readily cause death. Alcohol is contraindicated when taking barbiturates. Alternative remedies have not shown effectiveness in treating insomnia. PTS: 1

16. A 20-kg child has been taking valproic acid [Depakote] for 1 week to treat a seizure disorder. The child is receiving 200 mg PO twice daily. The child's parents report no improvement in seizure activity. The nurse will anticipate that the provider will order which change in this child's drug regimen? a. Adding another seizure medication to supplement the valproic acid b. Changing to phenytoin [Dilantin] since the valproic acid is not effective c. Increasing the dose of valproic acid to 300 mg PO twice daily d. Increasing the dose of valproic acid to 200 mg 3 times daily

ANS: C Valproic acid is given initially at a dose of 5 to 15 mg/kg/day, administered in two divided doses. This child is receiving 400 mg/day, which is 10 mg/kg/day. The dosage should be increased by 5 to 10 mg/kg/day each week until optimal levels are achieved up to a maximum dose of 60 mg/kg/day. At this point, adding another AED or changing to another AED is not recommended. Increasing the dose to 3 times daily is not recommended. PTS: 1

7. A patient in the emergency department is given intravenous diazepam [Valium] for seizures. When the seizures stop, the nurse notes that the patient is lethargic and confused and has a respiratory rate of 10 breaths per minute. The nurse will expect to administer which of the following? a. Flumazenil [Romazicon] b. Gastric lavage c. Respiratory support d. Toxicology testing

ANS: C When benzodiazepines are administered IV, severe effects, including profound hypotension, respiratory arrest, and cardiac arrest, can occur. Respiration should be monitored, and the airway must be managed if necessary. Flumazenil [Romazicon] is a competitive benzodiazepine receptor antagonist and is used to reverse the sedative effects but may not reverse respiratory depression. Gastric lavage would not be effective, because the benzodiazepine has been given IV. Without further indication of the ingestion of other drugs, toxicology testing is not a priority.

9. A patient who travels frequently for business reports occasional instances of being unable to fall asleep. The patient tells the nurse that job demands require staying up late and then getting up early for meetings. The nurse expects that the provider will prescribe which medication for this patient? a. Flurazepam b. Trazodone [Desyrel] c. Zaleplon [Sonata] d. Zolpidem [Ambien]

ANS: C Zaleplon [Sonata] works well for people who have trouble falling asleep and, because of its short duration of action, can be taken late at night without causing a hangover or next-day sedation early in the morning. Zolpidem [Ambien] has a longer duration and is a good choice for patients who have difficulty maintaining sleep. Flurazepam has a long duration of action. Trazodone causes daytime grogginess. PTS: 1

3. A nurse is preparing a patient who will stop taking lorazepam [Ativan] for anxiety and begin taking buspirone [Buspar]. Which statement by the patient indicates a need for further teaching? a. "I can drink alcohol when taking Buspar, but not grapefruit juice." b. "I may need to use a sedative medication if I experience insomnia." c. "I may not feel the effects of Buspar for a few weeks." d. "I should stop taking the Ativan when I start taking the Buspar."

ANS: D

4. A patient who is experiencing alcohol withdrawal is given a benzodiazepine. The nurse understands that this drug is effective because: a. the alcohol does not interact with the benzodiazepine. b. the benzodiazepine potentiates alcohol withdrawal symptoms. c. the benzodiazepine relieves muscle spasms and spasticity. d. the patient has a cross-dependence to the benzodiazepine.

ANS: D Benzodiazepines are given to ease withdrawal from alcohol because of cross-dependence with these drugs and alcohol, enabling the benzodiazepine to suppress withdrawal symptoms. Alcohol and benzodiazepines can potentiate one another. The benzodiazepine does not potentiate withdrawal symptoms. Benzodiazepines relieve muscle spasms, but this is not why they are given for alcohol withdrawal. PTS: 1

2. A patient who has been using secobarbital for several months to treat insomnia tells the nurse that the prescriber has said the prescription will be changed to temazepam [Restoril] because it is safer. The patient asks why this agent is safer. The nurse is correct in telling the patient that temazepam: a. does not depress the central nervous system. b. shows no respiratory depression, even in toxic doses. c. mimics the actions of a central nervous system inhibitory neurotransmitter. d. potentiates endogenous gamma-aminobutyric acid (GABA) producing a finite CNS depression.

ANS: D Benzodiazepines potentiate the actions of GABA, and because the amount of GABA in the CNS is finite, these drugs' depressive effect on the CNS is limited. Benzodiazepines depress the CNS but not to the extent that barbiturates do. Benzodiazepines are weak respiratory depressants at therapeutic doses and moderate respiratory depressants at toxic doses. Barbiturates mimic GABA; therefore, because they produce CNS depression, this effect is limited only by the amount of barbiturate administered.

10. A patient who has a seizure disorder is admitted to the hospital after an increase in seizure frequency, and the prescriber orders carbamazepine [Tegretol] 100 mg twice daily to be added to the patient's medication regimen. The nurse reviewing the patient's medical history notes that the patient is already taking lamotrigine [Lamictal] 375 mg twice daily. The nurse will contact the provider to discuss which action? a. Reducing the carbamazepine dose to 50 mg twice daily b. Reducing the lamotrigine dose to 225 mg twice daily c. Increasing the carbamazepine dose to 200 mg twice daily d. Increasing the lamotrigine dose to 500 mg twice daily

ANS: D Carbamazepine induces hepatic drug-metabolizing enzymes and can increase the rate at which lamotrigine and other drugs are metabolized; therefore, patients taking any of these drugs would need an increased dose. Reducing the dose of either drug is not indicated. Increasing the dose of carbamazepine may be necessary but only after serum drug levels have been checked. PTS: 1

3. A hospitalized patient who is given one dose of flurazepam continues to show drowsiness the next day. A nursing student asks the nurse the reason for this, because the drug's half-life is only 2 to 3 hours. Which response by the nurse is correct? a. "Benzodiazepines commonly cause residual effects lasting into the day after the dose is given." b. "The patient is having a paradoxical reaction to this medication." c. "This patient must have developed a previous tolerance to benzodiazepines." d. "When this drug is metabolized, the resulting compound has long-lasting effects."

ANS: D Flurazepam has a half-life of 2 to 3 hours; however, its metabolite has a long half-life, so giving the drug results in long-lasting effects. Barbiturates, not benzodiazepines, are commonly associated with residual, or hangover, effects. A paradoxical reaction to a sedative would manifest as insomnia, euphoria, and excitation, not drowsiness. Tolerance means that the patient would need increased amounts of a drug to get the desired effects and would not have prolonged effects of the medication. PTS: 1

7. A patient who has been taking a monoamine oxidase inhibitor (MAOI) for depression for several months tells the provider that the medication has not helped with symptoms. The provider plans to switch the patient to an SSRI. The nurse will teach this patient to: a. start taking the SSRI and stop the MAOI when symptoms improve. b. start taking the SSRI and then gradually withdraw the MAOI. c. stop taking the MAOI and wait 5 weeks before starting the SSRI. d. stop taking the MAOI 2 weeks before starting the SSRI.

ANS: D MAOIs increase 5-HT availability, thus greatly increasing the risk of serotonin syndrome. MAOIs should be withdrawn at least 14 days before an SSRI is started. An SSRI should never be given at the same time as an MAOI. It is not necessary to wait 5 weeks before starting an SSRI. PTS: 1

9. A patient who has obsessive-compulsive disorder (OCD) has been undergoing behavioral therapy but continues to exhibit symptoms that interfere with daily life. Which intervention will the nurse expect the provider to order for this patient? a. Alprazolam [Xanax] b. Buspirone [Buspar] c. Deep brain stimulation d. Fluoxetine [Paxil]

ANS: D Patients with OCD usually respond optimally to a combination of an SSRI, such as fluoxetine, and behavioral therapy. Alprazolam and buspirone are used to treat GAD. Deep brain stimulation is used when other therapies fail to treat OCD. PTS: 1

3. A patient is diagnosed with major depression with severe symptoms and begins taking an antidepressant medication. Three weeks after beginning therapy, the patient tells the nurse that the drug is not working. The nurse will counsel this patient to ask the provider about: a. adding a second medication to complement this drug. b. changing the medication to one in a different drug class. c. increasing the dose of this medication. d. using nondrug therapies to augment the medication.

ANS: D Patients with severe depression benefit more from a combination of drug therapy and psychotherapy than from either component alone, so this patient should ask the provider about nondrug therapies. Once a drug has been selected for treatment, it must be used for 4 to 8 weeks before its efficacy can be assessed. Until a drug has been used at least 1 month without success, it should not be considered a failure. Adding a second medication, changing to a different medication, and increasing the dose of this medication should all be reserved until the current drug is deemed to have failed after at least 4 weeks. PTS: 1

1. An agitated, extremely anxious patient is brought to the emergency department. The prescriber orders a benzodiazepine. The nurse understands that benzodiazepines are used in this clinical situation based on which principle? a. Benzodiazepines have a very short half-life. b. Physical dependence is not a risk when taking benzodiazepines. c. Benzodiazepines are known to cure generalized anxiety. d. Benzodiazepines have a rapid onset of action.

ANS: D The patient is clearly in a state of extreme, uncontrolled anxiety. Benzodiazepines are the drugs of choice for acute episodes of anxiety because of their rapid onset of action. Benzodiazepines do not have a very short half-life. Benzodiazepines are associated with physical dependence. Benzodiazepines do not cure generalized anxiety, nor do any other drugs. PTS: 1

17. A patient has begun taking phenobarbital after experiencing several seizures and is currently receiving 60 mg PO twice daily. After 2 weeks of therapy, the patient has a serum drug level of 30 mcg/mL and reports feeling drowsy much of the day. What will the nurse tell this patient? a. "I will contact your provider to discuss changing your dosing to once daily to minimize the drowsiness." b. "The drug level is low and you may need a higher dose, but taking it 3 times daily will reduce the drowsiness." c. "This side effect is expected and should decrease over time. You should avoid driving in the meantime." d. "The results of your lab work show a higher than normal level of the drug and your provider will probably lower your dose."

ans: a