Cardiac Problems/Heart Failure

The nurse will plan discharge teaching about the need for prophylactic antibiotics when having dental procedures for which patient? a. Patient admitted with a large acute myocardial infarction. b. Patient being discharged after an exacerbation of heart failure. c. Patient who had a mitral valve replacement with a mechanical valve. d. Patient being treated for rheumatic fever after a streptococcal infection.

ANS: C Current American Heart Association guidelines recommend the use of prophylactic antibiotics before dental procedures for patients with prosthetic valves to prevent infective endocarditis (IE). The other patients are not at risk for IE.

The nurse obtains a health history from a 65-year-old patient with a prosthetic mitral valve who has symptoms of infective endocarditis (IE). Which question by the nurse is most appropriate? a. "Do you have a history of a heart attack?" b. "Is there a family history of endocarditis?" c. "Have you had any recent immunizations?" d. "Have you had dental work done recently?"

ANS: D Dental procedures place the patient with a prosthetic mitral valve at risk for infective endocarditis (IE). Myocardial infarction (MI), immunizations, and a family history of endocarditis are not risk factors for IE.

Two days after an acute myocardial infarction (MI), a patient complains of stabbing chest pain that increases with a deep breath. Which action will the nurse take first? a. Auscultate the heart sounds. b. Check the patient's temperature. c. Notify the patient's health care provider. d. Give the PRN acetaminophen (Tylenol).

ANS: A The patient's clinical manifestations and history are consistent with pericarditis, and the first action by the nurse should be to listen for a pericardial friction rub. Checking the temperature and notifying the health care provider are also appropriate actions but would not be done before listening for a rub. It is not stated for what symptom (e.g., headache) or finding (e.g., increased temperature) the PRN acetaminophen (Tylenol) is ordered.

The nurse is caring for a client with mitral valve stenosis. What clinical manifestation alerts the nurse to the possibility that the client's stenosis has progressed? a. Oxygen saturation of 92% b. Dyspnea on exertion c. Muted systolic murmur d. Upper extremity weakness

ANS: B Dyspnea on exertion develops as the mitral valvular orifice narrows and pressure in the lungs increases.

The nurse is caring for a client diagnosed with aortic stenosis. What assessment finding does the nurse expect in this client? a. Bounding arterial pulse b. Slow, faint arterial pulse c. Narrowed pulse pressure d. Elevated systolic pressure

ANS: C In aortic stenosis, the client presents with narrowed pulse pressure when blood pressure (BP) is assessed.

A 55-year-old female patient develops acute pericarditis after a myocardial infarction. It is most important for the nurse to assess for which clinical manifestation of a possible complication? a. Presence of a pericardial friction rub b. Distant and muffled apical heart sounds c. Increased chest pain with deep breathing d. Decreased blood pressure with tachycardia

ANS: D Cardiac tamponade is a serious complication of acute pericarditis. Signs and symptoms indicating cardiac tamponade include narrowed pulse pressure, tachypnea, tachycardia, a decreased cardiac output, and decreased blood pressure. The other symptoms are consistent with acute pericarditis.

A client with end-stage heart failure is awaiting a transplant. The client appears depressed and states, "I know a transplant is my last chance, but I don't want to become a vegetable." What is the nurse's best response? a. "Would you like to speak with a priest or chaplain?" b. "I will consult a psychiatrist to speak with you." c. "Do you want to come off the transplant list?" d. "Would you like information about advance directives?"

ANS: D The client is verbalizing a real concern or fear about negative outcomes of the surgery. This anxiety itself can have a negative effect on the outcome of the surgery because of sympathetic stimulation. The best action is to allow the client to verbalize the concern and work toward a positive outcome without making the client feel as though he or she is crazy. The client needs to feel that he or she has some control over the future.

The nurse is caring for a 64-year-old patient admitted with mitral valve regurgitation. Which information obtained by the nurse when assessing the patient should be communicated to the health care provider immediately? a. The patient has bilateral crackles. b. The patient has bilateral, 4+ peripheral edema. c. The patient has a loud systolic murmur across the precordium. d. The patient has a palpable thrill felt over the left anterior chest.

ANS: A Crackles that are audible throughout the lungs indicate that the patient is experiencing severe left ventricular failure with pulmonary congestion and needs immediate interventions such as diuretics. A systolic murmur and palpable thrill would be expected in a patient with mitral regurgitation. Although 4+ peripheral edema indicates a need for a change in therapy, it does not need to be addressed urgently.

An older adult client is admitted with fluid volume excess. Which diagnostic study does the nurse facilitate as a priority? a. Echocardiography b. Chest x-ray c. T4 and thyroid-stimulating hormone (TSH) d. Arterial blood gas

ANS: A Echocardiography is considered the best tool for the diagnosis of heart failure. A chest x-ray probably will be done, and if the client has dyspnea, an arterial blood gas will be drawn, but the echocardiogram is the priority. T4 and TSH might be ordered to assess for a contributing cause of heart failure.

The nurse is concerned that an older adult client with heart failure is developing pulmonary edema. What manifestation alerts the nurse to further assess the client for this complication? a. Confusion b. Dysphagia c. Sacral edema d. Irregular heart rate

ANS: A Impending pulmonary edema is characterized by a change in mental status, disorientation, and confusion, along with dyspnea and increasing fluid levels in the lungs. Dysphagia, sacral edema, and an irregular heart rate are not related to pulmonary edema.

A client in severe heart failure has a heparin drip infusing. The health care provider prescribes nesiritide (Natrecor) to be given intravenously. Which intervention is essential before administration of this medication? a. Insert a separate IV access. b. Prepare a test bolus dose. c. Prepare the piggyback line. d. Administer furosemide (Lasix) first.

ANS: A Natrecor should be given through a separate IV access because it is incompatible with many medications, especially heparin. A test bolus is not needed, nor is Lasix. Because the medication should be given through a separate IV, it is not necessary to prepare a piggyback line.

A client with heart failure is experiencing acute shortness of breath. What is the nurse's priority action? a. Place the client in a high Fowler's position. b. Perform nasotracheal suctioning of the client. c. Auscultate the client's heart and lung sounds. d. Place the client on a 1000 mL fluid restriction.

ANS: A Placing a client in a high Fowler's position, especially with pillows under each arm, can maximize chest expansion and improve oxygenation. The nurse next should auscultate the client's heart and lungs. The client may or may not need fluid restriction to help manage heart failure, and suctioning is not needed.

A client with a history of myocardial infarction calls the clinic to report the onset of a cough that is troublesome only at night. What direction does the nurse give to the client? a. "Please come into the clinic for an evaluation." b. "Increase your fluid intake during waking hours." c. "Use an over-the-counter cough suppressant." d. "Sleep on two pillows to facilitate postnasal drainage."

ANS: A The client with a history of myocardial infarction is at risk for developing heart failure. The onset of nocturnal cough is an early manifestation of heart failure, and the client needs to be evaluated as soon as possible.

The nurse is providing care to a client with infective endocarditis. What infection control precautions does the nurse use? a. Standard Precautions b. Bleeding Precautions c. Reverse isolation d. Contact isolation

ANS: A The client with infective endocarditis does not pose any specific threat of transmitting the causative organism.

The nurse assesses a client and notes the presence of an S3 gallop. What is the nurse's best intervention? a. Assess for symptoms of left-sided heart failure. b. Document this as a normal finding. c. Call the health care provider immediately. d. Transfer the client to the intensive care unit.

ANS: A The presence of an S3 gallop is an early diastolic filling sound indicative of increasing left ventricular pressure and left ventricular failure. The other actions are not warranted.

While admitting a patient with pericarditis, the nurse will assess for what manifestations of this disorder? A. Pulsus paradoxus B. Prolonged PR intervals C. Widened pulse pressure D. Clubbing of the fingers

ANS: A. Pericarditis can lead to cardiac tamponade, an emergency situation. Pulsus paradoxus greater than 10 mm Hg is a sign of cardiac tamponade that should be assessed at least every 4 hours in a patient with pericarditis. Prolonged PR intervals occur with first-degree AV block. Widened pulse pressure occurs with valvular heart disease. Clubbing of fingers may occur in subacute forms of infective endocarditis and valvular heart disease.

After receiving report on the following patients, which patient should the nurse assess first? a. Patient with rheumatic fever who has sharp chest pain with a deep breath b. Patient with acute aortic regurgitation whose blood pressure is 86/54 mm Hg c. Patient with infective endocarditis who has a murmur and splinter hemorrhages d. Patient with dilated cardiomyopathy who has bilateral crackles at the lung bases

ANS: B Hypotension in patients with acute aortic regurgitation may indicate cardiogenic shock. The nurse should immediately assess this patient for other findings such as dyspnea or chest pain. The findings in the other patients are typical of their diagnoses and do not indicate a need for urgent assessment and intervention.

During the assessment of a 25-year-old patient with infective endocarditis (IE), the nurse would expect to find a. substernal chest pressure. b. a new regurgitant murmur. c. a pruritic rash on the chest. d. involuntary muscle movement.

ANS: B New regurgitant murmurs occur in IE because vegetations on the valves prevent valve closure. Substernal chest discomfort, rashes, and involuntary muscle movement are clinical manifestations of other cardiac disorders such as angina and rheumatic fever.

The nurse is administering captopril (Capoten) to a client with heart failure. What is the priority intervention for this client? a. Administer this medication before meals to aid absorption. b. Instruct the client to ask for assistance when arising from bed. c. Give the medication with milk to prevent stomach upset. d. Monitor the potassium level and check for symptoms of hypokalemia.

ANS: B Administration of the first dose of angiotensin-converting enzyme (ACE) inhibitors is often associated with hypotension, usually termed first-dose effect. The nurse should instruct the client to seek assistance before arising from bed to prevent injury from postural hypotension.

The nurse is assessing a client with a history of heart failure. What priority question assists the nurse to assess the client's activity level? a. "Do you have trouble breathing or chest pain?" b. "Are you able to walk upstairs without fatigue?" c. "Do you awake with breathlessness during the night?" d. "Do you have new-onset heaviness in your legs?"

ANS: B Clients with a history of heart failure generally have negative findings, such as shortness of breath. The nurse needs to determine whether the client's activity is the same or worse, or whether the client identifies a decrease in activity level.

A client with systolic dysfunction has an ejection fraction of 38%. The nurse assesses for which physiologic change? a. Increase in stroke volume b. Decrease in tissue perfusion c. Increase in oxygen saturation d. Decrease in arterial vasoconstriction

ANS: B In systolic dysfunction, the ventricle is unable to contract with enough force to eject blood effectively during systole. As the ejection fraction decreases (50% to 70% is normal), tissue perfusion decreases and the client develops activity intolerance. Stroke volume and oxygen saturation do not increase with a low ejection fraction.

The nurse is assessing a client admitted to the cardiac unit. What statement made by the client alerts the nurse to the possibility of right-sided heart failure? a. "I sleep with four pillows at night." b. "My shoes fit really tight lately." c. "I wake up coughing every night." d. "I have trouble catching my breath."

ANS: B Signs of systemic congestion occur with right-sided heart failure. Fluid is retained, pressure builds in the venous system, and peripheral edema develops. Left-sided heart failure symptoms include respiratory symptoms. Orthopnea, coughing, and difficulty breathing all could be results of left-sided heart failure.

A client who has had a prosthetic valve replacement asks the nurse why he must take anticoagulants for the rest of his life. What is the nurse's best response? a. "The prosthetic valve places you at greater risk for a heart attack." b. "Blood clots form more easily in artificial replacement valves." c. "The vein taken from your leg reduces circulation in the leg." d. "The surgery left a lot of small clots in your heart and lungs."

ANS: B Synthetic valve prostheses and scar tissue provide surfaces on which platelets can aggregate easily and initiate the formation of blood clots.

A client with pericarditis is admitted to the cardiac unit. What assessment finding does the nurse expect in this client? a. Heart rate that speeds up and slows down b. Friction rub at the left lower sternal border c. Presence of a regularly gallop rhythm d. Coarse crackles in bilateral lung base.

ANS: B The client with pericarditis may present with a pericardial friction rub at the left lower sternal border. This sound is the result of friction from inflamed pericardial layers when they rub together. The other assessments are not related.

A client is being discharged home after a heart transplant with a prescription for cyclosporine (Sandimmune). What priority education does the nurse provide with the client's discharge instructions? a. "Use a soft-bristled toothbrush and avoid flossing." b. "Avoid large crowds and people who are sick." c. "Change positions slowly to avoid hypotension." d. "Check your heart rate before taking the medication."

ANS: B These agents cause immune suppression, leaving the client more vulnerable to infection.

When caring for a patient with infective endocarditis of the tricuspid valve, the nurse should monitor the patient for the development of a. flank pain. b. splenomegaly. c. shortness of breath. d. mental status changes.

ANS: C Embolization from the tricuspid valve would cause symptoms of pulmonary embolus. Flank pain, changes in mental status, and splenomegaly would be associated with embolization from the left-sided valves.

Which assessment finding obtained by the nurse when assessing a patient with acute pericarditis should be reported immediately to the health care provider? a. Pulsus paradoxus 8 mm Hg b. Blood pressure (BP) of 168/94 c. Jugular venous distention (JVD) to jaw level d. Level 6 (0 to 10 scale) chest pain with a deep breath

ANS: C The JVD indicates that the patient may have developed cardiac tamponade and may need rapid intervention to maintain adequate cardiac output. Hypertension would not be associated with complications of pericarditis, and the BP is not high enough to indicate that there is any immediate need to call the health care provider. A pulsus paradoxus of 8 mm Hg is normal. Level 6/10 chest pain should be treated but is not unusual with pericarditis.

A patient recovering from heart surgery develops pericarditis and complains of level 6 (0 to 10 scale) chest pain with deep breathing. Which ordered PRN medication will be the most appropriate for the nurse to give? a. Fentanyl 1 mg IV b. IV morphine sulfate 4 mg c. Oral ibuprofen (Motrin) 600 mg d. Oral acetaminophen (Tylenol) 650 mg

ANS: C The pain associated with pericarditis is caused by inflammation, so nonsteroidal antiinflammatory drugs (NSAIDs) (e.g., ibuprofen) are most effective. Opioid analgesics are usually not used for the pain associated with pericarditis.

The nurse is assessing a client in an outpatient clinic. Which client statement alerts the nurse to possible left-sided heart failure? a. "I have been drinking more water than usual." b. "I have been awakened by the need to urinate at night." c. "I have to stop halfway up the stairs to catch my breath." d. "I have experienced blurred vision on several occasions."

ANS: C Clients with left-sided heart failure report weakness or fatigue while performing normal activities of daily living, as well as difficulty breathing, or "catching their breath." This occurs as fluid moves into the alveoli. Nocturia is often seen with right-sided heart failure. Thirst and blurred vision are not related to heart failure.

A client is admitted with early-stage heart failure. Which assessment finding does the nurse expect? a. A decrease in blood pressure and urine output b. An increase in creatinine and extremity edema c. An increase in heart rate and respiratory rate d. A decrease in respirations and oxygen saturation

ANS: C In heart failure, stimulation of the sympathetic nervous system represents the most immediate response. Adrenergic receptor stimulation causes an increase in heart rate and respiratory rate. Blood pressure will remain the same or will elevate slightly. Changes in creatinine occur when kidney damage has occurred, which is a later manifestation. Other later manifestations may include edema, increased respiratory rate, and lowered oxygen saturation readings.

The nurse is providing discharge education to a client with hypertrophic cardiomyopathy (HCM). What priority instruction will the nurse include? a. "Take your digoxin at the same time every day." b. "You should begin an aerobic exercise program." c. "You should report episodes of dizziness or fainting." d. "You may have only two alcoholic drinks daily.

ANS: C The client with HCM is instructed to notify the health care provider if episodes of fainting, dizziness, or palpitations occur because these may signal the onset of deadly dysrhythmias. Clients with HCM are instructed to avoid strenuous exercise and alcohol. Cardiac glycosides are contraindicated in obstructive HCM.

A client has been admitted to the intensive care unit with worsening pulmonary manifestations of heart failure. What is the nurse's best action? a. Place the client in a high Fowler's position. b. Begin cardiopulmonary resuscitation (CPR). c. Promote rest and minimize activities. d. Administer loop diuretics as prescribed.

ANS: D The client with worsening heart failure is most at risk for pulmonary edema as a consequence of fluid retention. Administering diuretics will decrease the fluid overload, thereby decreasing the incidence of pulmonary edema. High Fowler's position might help the client breathe easier but will not solve the problem. CPR is not warranted in this situation. Rest is important for clients with heart failure, but this is not the priority.

The nurse is obtaining the admission health history for a young adult who presents with fever, dyspnea, and a murmur. What priority data does the nurse inquire about? a. Family history of coronary artery disease b. Recent travel to Third World countries c. Pet ownership, especially cats with litter boxes d. History of a systemic infection within the past month

ANS: D The clinical manifestations suggest infective endocarditis, which can occur within 2 to 4 weeks after a systemic infection or bacteremia. Assessing for coronary artery disease, recent travel, or pet ownership is not related to endocarditis.

The client who just started taking isosorbide dinitrate (Imdur) reports a headache. What is the nurse's best action? a. Titrate oxygen to relieve headache. b. Hold the next dose of Imdur. c. Instruct the client to drink water. d. Administer PRN acetaminophen.

ANS: D The vasodilating effects of this drug frequently cause clients to have headaches during the initial period of therapy. Clients should be told about this side effect and encouraged to take the medication with food. Some clients obtain relief with mild analgesics, such as acetaminophen.

The nurse is assessing clients on a cardiac unit. Which client does the nurse assess most carefully for developing left-sided heart failure? a. Middle-aged woman with aortic stenosis b. Middle-aged man with pulmonary hypertension c. Older woman who smokes cigarettes daily d. Older man who has had a myocardial infarction

ANS: A Although most people with heart failure will have failure that progresses from left to right, it is possible to have left-sided failure alone for a short period. It is also possible to have heart failure that progresses from right to left. Causes of left ventricular failure include mitral or aortic valve disease, coronary artery disease (CAD), and hypertension.

A client with heart failure is prescribed enalapril (Vasotec). What is the nurse's priority teaching for this client? a. "Avoid using salt substitutes." b. "Take your medication with food." c. "Avoid using aspirin-containing products." d. "Check your pulse daily."

ANS: A Angiotensin-converting enzyme (ACE) inhibitors inhibit the excretion of potassium. Hyperkalemia can be a life-threatening side effect, and clients should be taught to limit potassium intake. Salt substitutes are composed of potassium chloride.

An older adult client with heart failure states, "I don't know what to do. I don't want to be a burden to my daughter, but I can't do it alone. Maybe I should die." What is the nurse's best response? a. "Would you like to talk about this more?" b. "You're lucky to have such a devoted daughter." c. "You must feel as though you are a burden." d. "Would you like an antidepressant medication?"

ANS: A Depression can occur in clients with heart failure, especially older adults. Having the client talk about his or her feelings will help the nurse focus on the actual problem. Open-ended statements allow the client to respond safely and honestly.

A client with heart failure is due to receive enalapril (Vasotec) and has a blood pressure of 98/50 mm Hg. What is the nurse's best action? a. Administer the Vasotec. b. Recheck the blood pressure. c. Hold the Vasotec. d. Notify the health care provider.

ANS: A The nurse should administer the medication. Generally, the health care provider will maintain the client's blood pressure between 90 and 110 mm Hg.

When planning care for a patient hospitalized with a streptococcal infective endocarditis (IE), which intervention is a priority for the nurse to include? a. Monitor labs for streptococcal antibodies. b. Arrange for placement of a long-term IV catheter. c. Teach the importance of completing all oral antibiotics. d. Encourage the patient to begin regular aerobic exercise.

ANS: B Treatment for IE involves 4 to 6 weeks of IV antibiotic therapy in order to eradicate the bacteria, which will require a long-term IV catheter such as a peripherally inserted central catheter (PICC) line. Rest periods and limiting physical activity to a moderate level are recommended during the treatment for IE. Oral antibiotics are not effective in eradicating the infective bacteria that cause IE. Blood cultures, rather than antibody levels, are used to monitor the effectiveness of antibiotic therapy.

The nurse is discharging a client home following mitral valve replacement. What statement indicates that the client requires further education? a. "I will be able to carry heavy loads after 6 months of rest." b. "I will have my teeth cleaned by the dentist in 2 weeks." c. "I will avoid eating foods high in vitamin K, like spinach." d. "I will use an electric razor instead of a straight razor to shave."

ANS: B Clients who have defective or repaired valves are at high risk for endocarditis. The client who has had valve surgery should avoid dental procedures for 6 months because of the risk for endocarditis. When undergoing any invasive procedure, the client needs to be placed on prophylactic antibiotics.

The rehabilitation nurse is assisting a client with heart failure to increase activity tolerance. During ambulation of the client, identification of what symptom causes the nurse to stop the client's activity? a. Decrease in oxygen saturation from 98% to 95% b. Respiratory rate change from 22 to 28 breaths/min c. Systolic blood pressure change from 136 to 96 mm Hg d. Increase in heart rate from 86 to 100 beats/min

ANS: C A blood pressure change (increase or decrease) of greater than 20 mm Hg during or after activity indicates poor cardiac tolerance of the activity. A significant decrease (>20%) in blood pressure during or after activity is especially ominous, because it indicates an inability of the left ventricle to maintain sufficient cardiac output.

The nurse reminds the client who has received a heart transplant to change positions slowly. Why is this instruction a priority? a. Rapid position changes can create shear and friction forces, which can tear out internal vascular sutures. b. The new vascular connections are more sensitive to position changes, leading to increased intravascular pressure. c. The new heart is denervated and is unable to respond to decreases in blood pressure caused by position changes. d. The recovering heart diverts blood flow away from the brain when the client stands, increasing the risk for stroke.

ANS: C Because the new heart is denervated, the baroreceptor and other mechanisms that compensate for blood pressure drops caused by position changes do not function. This allows orthostatic hypotension to persist in the postoperative period.