Pharm: Eye & Ear Medications

A client with glaucoma is receiving acetazolamide. The nurse educator provides education to a group of nurses about the indications for and effect of this medication. Which statement by one of the nurses indicates that the teaching has been effective? 1. "This works to prevent hypertension." 2. "This works to prevent hyperthermia." 3. "This works to decrease intraocular pressure." 4. "This works to maintain an adequate blood pressure for cerebral perfusion."

3. "This works to decrease intraocular pressure." Rationale: Acetazolamide is a carbonic-anhydrase inhibitor used to treat glaucoma. The medication decreases the formation of aqueous humor. The statements in the remaining options are not indicative of the purpose of this medication.

The nurse would question the health care provider if which medication were prescribed for a client with glaucoma? 1. Carbachol 2. Atropine sulfate 3. Pilocarpine nitrate 4. Pilocarpine hydrochloride

2. Atropine sulfate Rationale: Pilocarpine and carbachol are examples of miotic agents used in the treatment of glaucoma. Atropine sulfate is a mydriatic and cycloplegic medication that is contraindicated for use in clients with glaucoma. Mydriatic medications dilate the pupil and can cause an increase in intraocular pressure in the eye.

The nurse is reviewing the instillation technique for both eye ointment and eye drops with the parent of a pediatric client diagnosed with bacterial conjunctivitis. Which statement made by the parent would indicate that learning has taken place? 1. "I will be careful not to touch the eye or eyelid during administration." 2. "I will place my child on the left side to administer drops in the right eye." 3. "I will administer the eye ointment and then wait 5 minutes and administer the eye drops." 4. "I will have my child blink after the instillation to encourage thorough distribution of the eye drops."

1. "I will be careful not to touch the eye or eyelid during administration." Rationale: Touching the eye or eyelid during medication administration can contaminate the dropper and cause eye injury. The child should be placed in a supine position with the neck slightly hyperextended for administration. Eye drops should be administered before eye ointment is administered. Blinking will increase the loss of medication.

A client who is scheduled for cataract surgery requires preoperative instillation of cyclopentolate eye drops as prescribed. The client asks the nurse why this medication is needed, and the nurse provides education. Which statement by the client indicates that teaching has been effective? 1. "The medication dilates the pupil of the operative eye." 2. "The medication constricts the pupil of the operative eye." 3. "The medication is needed for the initiation of miosis in the operative eye." 4. "The medication provides the necessary lubrication to the nonoperative eye."

1. "The medication dilates the pupil of the operative eye." Rationale: Cyclopentolate is a rapidly acting mydriatic and cycloplegic medication that is used preoperatively to dilate the eye. It is effective in 25 to 75 minutes, and accommodation returns in 6 to 24 hours. The statements in the other options are incorrect.

A client is prescribed an eye drop and an eye ointment for the right eye. How should the nurse best administer the medications? 1. Administer the eye drop first, followed by the eye ointment. 2. Administer the eye ointment first, followed by the eye drop. 3. Administer the eye drop, wait 15 minutes, and administer the eye ointment. 4. Administer the eye ointment, wait 15 minutes, and administer the eye drop.

1. Administer the eye drop first, followed by the eye ointment. Rationale: When an eye drop and an eye ointment are scheduled to be administered at the same time, the eye drop is administered first. The instillation of two medications is separated by 3 to 5 minutes.

The home care nurse is reviewing the record of a client newly diagnosed with glaucoma who is scheduled for a home visit. The nurse notes that the health care provider (HCP) has prescribed atropine sulfate and pilocarpine hydrochloride eye drops. The nurse should contact the HCP before the home visit for which reason? 1. Clarify the prescription for the atropine sulfate. 2. Clarify the prescription for the pilocarpine hydrochloride. 3. Determine the date of the scheduled follow-up HCP visit. 4. Determine the extent of the intraocular pressure caused by the glaucoma.

1. Clarify the prescription for the atropine sulfate. Rationale: Atropine sulfate is a mydriatic and cycloplegic medication that is contraindicated in clients with glaucoma. Mydriatic medications dilate the pupil and cause increased intraocular pressure in the eye. Pilocarpine hydrochloride is a miotic agent used in the treatment of glaucoma. It is unnecessary to contact the HCP regarding the date for follow-up treatment. In fact, the client may know this date, which the nurse can ask about during the home care visit. It is unnecessary to know the extent of the intraocular pressure caused by the glaucoma in planning care for the client.

A client being discharged to home with a prescription for eye drops to be given in the left eye has received instructions regarding self-administration of the drops. The nurse determines that the client needs further instruction if, on return demonstration, the client takes which action? 1. Lies supine, pulls up on the upper lid, and puts the drop in the upper lid 2. Lies supine, pulls down on the lower lid, and puts the drop in the lower lid 3. Tilts the head back, pulls down on the lower lid, and puts the drop in the lower lid 4. Lies with head to the right, puts the drop in the inner canthus, and slowly turns to the left while blinking

1. Lies supine, pulls up on the upper lid, and puts the drop in the upper lid Rationale: It is correct procedure for the client to lie down or sit with his or her head tilted back. The thumb or finger is used to pull down on the lower lid. The client holds the bottle like a pencil (tip facing downward) and squeezes the bottle so that one drop falls into the sac. The client then gently closes the eye. An alternative method for clients who blink very easily is to place the client in the supine position with the head turned to one side. The eye to be used is uppermost. With the eye closed, the client squeezes the drop onto the inner canthus of the eye. The client turns from this side to the other while blinking. Surface tension and gravity then cause the drop to move into the conjunctival sac.

Betaxolol eye drops have been prescribed for a client with glaucoma. The home health nurse preparing to visit the client develops a plan of care that includes monitoring for the side/adverse effects of this medication by taking which assessment action? 1. Monitoring body weight 2. Assessing the glucose level 3. Assessing peripheral pulses 4. Monitoring body temperature

1. Monitoring body weight Rationale: This medication is an antiglaucoma medication and a β-adrenergic blocker. The nurse assesses for evidence of heart failure manifested by dizziness, night cough, peripheral edema, and distended neck veins. Intake greater than output, weight gain, and decreased urine output also may indicate heart failure. Hypotension (manifested as dizziness), nausea, diaphoresis, headache, fatigue, and constipation or diarrhea also are potential systemic effects of the medication. Nursing interventions include monitoring body weight; periodically evaluating blood pressure for hypotension; and assessing the apical or radial pulse for strength, weakness, irregular heart rate, and bradycardia.

Betaxolol eye drops have been prescribed for a client with glaucoma. The nurse monitoring this client for side/adverse effects of the medication would place highest priority on which assessment? 1. Pulse rate 2. Blood glucose 3. Respiratory rate 4. Oxygen saturation

1. Pulse rate Rationale: Betaxolol is a beta-blocking agent as well as an antiglaucoma medication. Nursing assessments include monitoring the blood pressure for hypotension and assessing the pulse for strength, weakness, irregular rate, and bradycardia. The nurse also assesses for evidence of heart failure as manifested by dizziness, night cough, peripheral edema, and distended neck veins.

The nurse is preparing to administer eye drops. Which interventions should the nurse take to administer the drops? Select all that apply. 1. Wash hands. 2. Put gloves on. 3. Place the drop in the conjunctival sac. 4. Pull the lower lid down against the cheekbone. 5. Instruct the client to squeeze the eyes shut after instilling the eye drop. 6. Instruct the client to tilt the head forward, open the eyes, and look down.

1. Wash hands. 2. Put gloves on. 3. Place the drop in the conjunctival sac. 4. Pull the lower lid down against the cheekbone. Rationale: To administer eye medications, the nurse should wash hands and put gloves on. The client is instructed to tilt the head backward, open the eyes, and look up. The nurse pulls the lower lid down against the cheekbone and holds the bottle like a pencil with the tip downward. Holding the bottle, the nurse gently rests the wrist of the hand on the client's cheek and squeezes the bottle gently to allow the drop to fall into the conjunctival sac. The client is instructed to close the eyes gently and not to squeeze the eyes shut to prevent the loss of medication.

Ear drops are prescribed for an infant with otitis media. Which is the most appropriate method to administer ear drops to an infant? 1. Pull up and back on the pinna, and direct the solution onto the eardrum. 2. Pull down and back on the pinna, and direct the solution onto the eardrum. 3. Pull down and back on the pinna, and direct the solution toward the wall of the canal. 4. Pull up and back on the pinna, and direct the solution toward the wall of the canal.

3. Pull down and back on the pinna, and direct the solution toward the wall of the canal. Rationale: In a child younger than 3 years of age, the pinna is pulled down and straight back. The infant should be turned on the side with the affected ear uppermost. Using the nondominant hand, the person administering the ear drops pulls the pinna down and back. The medication is administered by aiming it at the wall of the canal rather than directly onto the eardrum. The infant should remain with the affected ear uppermost for 10 to 15 minutes to retain the solution. In an adult or a child older than 3 years of age, the pinna is pulled up and back to straighten the auditory canal.

Which medication, if prescribed for the client with glaucoma, should the nurse question? 1. Betaxolol 2. Pilocarpine 3. Erythromycin 4. Atropine sulfate

4. Atropine sulfate Rationale: Options 1 and 2 are miotic agents used to treat glaucoma. Option 3 is an antiinfective medication used to treat bacterial conjunctivitis. Atropine sulfate is a mydriatic and cycloplegic (also anticholinergic) medication, and its use is contraindicated in clients with glaucoma. Mydriatic medications dilate the pupil and can cause an increase in intraocular pressure in the eye.

A client has been prescribed betaxolol eye drops for the treatment of glaucoma. The ambulatory care nurse determines that the client understands proper medication use if the client states the need to return to the office for monitoring of what item(s)? 1. Hearing acuity 2. Blood glucose level 3. Presence of calf pain 4. Blood pressure and apical pulse

4. Blood pressure and apical pulse Rationale: Betaxolol is an antiglaucoma medication and a β-adrenergic blocker. Systemic effects of this medication are hypotension, dizziness, nausea, diaphoresis, headache, fatigue, constipation, and diarrhea. The client should have the blood pressure monitored for hypotension and the pulse assessed for strength, weakness, irregular rate, and bradycardia. Bowel activity and evidence of heart failure also should be assessed. The other options are incorrect and not associated with this medication.

A client with glaucoma is given a prescription for a pilocarpine ocular system. The nurse plans to provide which instruction to the client on how to use the medication? 1. Apply ½ inch into the eye at bedtime. 2. Apply one drop of the solution four times a day. 3. Remove and replace the ocular system every 48 hours. 4. Check the eye each morning to make sure that the system is in place.

4. Check the eye each morning to make sure that the system is in place. Rationale: The pilocarpine ocular system has a bilayered membrane surrounding a reservoir of pilocarpine solution. The tiny unit, which is placed in the conjunctival sac, slowly releases medication. The unit should be changed once a week. Because the unit may fall out during sleep, the client should check the eye each morning for its presence.

The nurse teaching a mother how to administer ear drops to an infant tells the mother to pull the child's ear in which direction? 1. Up and back and direct the solution onto the eardrum 2. Down and forward and direct the solution onto the eardrum 3. Up and forward and direct the solution toward the wall of the canal 4. Down and back and direct the solution toward the wall of the canal

4. Down and back and direct the solution toward the wall of the canal Rationale: The ear is pulled down and straight back in a child younger than 3 years. The infant is turned onto the side, with the affected ear uppermost. The nurse pulls down and back on the earlobe with the nondominant hand while resting the wrist of the dominant hand on the infant's head. The medication is directed toward the wall of the canal rather than onto the eardrum. The infant should lie with the affected ear uppermost for 10 to 15 minutes to retain the solution. In an adult or a child older than 3 years, the ear is pulled up and back to straighten the auditory canal.

When teaching a client with glaucoma about the effects of a miotic medication, the nurse should tell the client that the medication will produce which effect? 1. Reshape the lens to eliminate blurred vision 2. Dilate the pupil to reduce intraocular pressure 3. Interrupt the drainage of aqueous humor from the eye 4. Lower intraocular pressure and improve blood flow to the retina

4. Lower intraocular pressure and improve blood flow to the retina Rationale: Miotics are used to lower the intraocular pressure, which then increases blood flow to the retina. This in turn decreases retinal damage and loss of vision. Miotics cause a contraction or constriction of the ciliary muscle and widen the trabecular meshwork. The other options are incorrect.

The nurse is providing instructions to a client who will be self-administering eye drops. To minimize systemic absorption of the eye drops, the nurse should instruct the client to take which action? 1. Eat before instilling the drops. 2. Swallow several times after instilling the drops. 3. Blink vigorously to encourage tearing after instilling the drops. 4. Occlude the nasolacrimal duct with a finger after instilling the drops.

4. Occlude the nasolacrimal duct with a finger after instilling the drops. Rationale: Applying pressure on the nasolacrimal duct prevents systemic absorption of the medication. Options 1, 2, and 3 will not prevent systemic absorption.

The nurse is teaching a mother to instill drops in her infant's ear. The nurse explains that to give the ear drops correctly, the mother needs to take which action? 1. Pull up and back on the earlobe and direct the solution toward the eardrum. 2. Pull down and back on the auricle and direct the solution toward the eardrum. 3. Pull up and back on the auricle and direct the solution toward the wall of the canal. 4. Pull down and back on the earlobe and direct the solution toward the wall of the canal.

4. Pull down and back on the earlobe and direct the solution toward the wall of the canal. Rationale: The infant should be turned onto the side, with the affected ear uppermost. With the wrist of the nondominant hand resting on the infant's head, the mother pulls down and back on the earlobe and aims the solution at the wall of the canal, rather than directly onto the eardrum. In the adult, the auricle is pulled up and back to straighten the auditory canal.

The preoperative medication sheet identifies that cyclopentolate is prescribed for a client before cataract surgery. The client asks the nurse what the medication is for, and the nurse provides education. Which statement by the client indicates that teaching has been effective? 1. "It lubricates the eye." 2. "It makes my pupils smaller." 3. "It paralyzes the muscles in my eye." 4. "It causes me vessels to become smaller."

3. "It paralyzes the muscles in my eye." Rationale: Cyclopentolate is used for preoperative mydriasis. It is a rapid-acting mydriatic and cycloplegic medication. Cycloplegics are medications that paralyze the ciliary muscle, and mydriatics are medications that dilate the pupil. Cyclopentolate becomes effective in 25 to 75 minutes, and the effects last for 6 to 24 hours. The statements in the remaining options are not actions of this medication.

The nursing student is assigned to care for a client with glaucoma for whom pilocarpine hydrochloride eye drops have been prescribed. The nursing instructor asks the student to describe the action of the eye medication. Which statement by the student indicates an understanding of the purpose of this medication? 1. "The medication prevents blurred vision by relaxing the muscles of the eyes." 2. "The medication dilates the eye to prevent increased pressure from occurring." 3. "The medication increases the blood flow to the retina and also will lower the pressure in the eye." 4. "The medication blocks responses that are sent to the brain that direct the actions of the muscles in the eye."

3. "The medication increases the blood flow to the retina and also will lower the pressure in the eye." Rationale: Pilocarpine hydrochloride is a miotic that is used to lower the intraocular pressure, thereby increasing blood flow to the retina and decreasing retinal damage and loss of vision. Miotics cause a contraction of the ciliary muscle and a widening of the trabecular meshwork. The statements in the remaining options are incorrect.

In preparation for cataract surgery, the nurse is to administer prescribed eye drops. The nurse reviews the health care provider's prescriptions, expecting which type of eye drops to be prescribed? 1. A miotic agent 2. A thiazide diuretic 3. An osmotic diuretic 4. A mydriatic medication

4. A mydriatic medication Rationale: A mydriatic medication produces mydriasis or dilation of the pupil. Mydriatic medications are used preoperatively in the client with a cataract. These medications act by dilating the pupils; they also constrict blood vessels. A miotic medication constricts the pupil. An osmotic diuretic may be used to decrease intraocular pressure. A thiazide diuretic is not likely to be prescribed for a client with a cataract.

The nurse is performing an admission assessment on a client who has a history of glaucoma and uses latanoprost eye drops. Which assessment finding would indicate a side/adverse effect of these eye drops? 1. Irregular pulse 2. Periorbital edema 3. Elevated blood pressure 4. Brown pigmentation of the iris

4. Brown pigmentation of the iris Rationale: Latanoprost is a topical medication used to lower intraocular pressure in clients with open-angle glaucoma and ocular hypertension. The most significant side/adverse effect is heightened brown pigmentation of the iris. Other side effects include blurred vision, burning, stinging, conjunctival hyperemia, and punctate keratopathy. The heightened pigmentation does not progress further once the medication is discontinued but does not regress. The other options are not noted with this medication.

Pilocarpine hydrochloride is prescribed for a client with glaucoma. The nurse checks the medication supply room to ensure that atropine sulfate is available for administration in the event that systemic toxicity occurs from the use of pilocarpine hydrochloride. The nurse also monitors for which sign of systemic toxicity? 1. Anorexia 2. Bradycardia 3. Tachycardia 4. Hypertension

2. Bradycardia Rationale: Systemic absorption of pilocarpine hydrochloride can produce toxicity, manifested as vertigo, bradycardia, tremors, hypotension, syncope, cardiac dysrhythmias, and seizures. Atropine sulfate is the antidote for systemic reactions that occur with pilocarpine.

A client with chronic glaucoma is being started on medication therapy with acetazolamide. The nurse teaches the client that which can occur early with the use of this medication? 1. Fatigue 2. Diuresis 3. Headache 4. Loss of libido

2. Diuresis Rationale: Diuresis is an early side effect of acetazolamide that usually subsides with continued treatment. This is because the medication is also a weak diuretic, although it is no longer prescribed for that purpose. Fatigue, headache, and loss of libido are common side effects of therapy, but these may not subside spontaneously.

The nurse working in a long-term care facility notes that several clients are taking pilocarpine hydrochloride eye drops. The nurse ensures that which medication is available on the nursing unit for use if a client should develop systemic toxicity from pilocarpine hydrochloride? 1. Disulfiram 2. Cyclopentolate 3. Atropine sulfate 4. Naloxone hydrochloride

3. Atropine sulfate Rationale: Pilocarpine hydrochloride is a cholinergic agent. Atropine sulfate must be available in the event of systemic toxicity from pilocarpine hydrochloride. Pilocarpine toxicity is manifested by vertigo, bradycardia, tremors, hypotension, syncope, cardiac dysrhythmias, and seizures. Disulfiram is an alcohol deterrent used in the management of alcoholism in selected clients. Cyclopentolate is a rapidly acting mydriatic and cycloplegic medication used preoperatively for surgical procedures on the eye. Naloxone hydrochloride is an opioid antagonist used to reverse opioid-induced respiratory depression.

The nurse prepares a client for ear irrigation as prescribed by the health care provider. Which action should the nurse take when performing the procedure? 1. Warm the irrigating solution to 98.6°F (37.0°C) . 2. Position the client with the affected side up following the irrigation. 3. Direct a slow, steady stream of irrigation solution toward the eardrum. 4. Assist the client to turn his or her head so that the ear to be irrigated is facing upward.

1. Warm the irrigating solution to 98.6°F (37.0°C) . Rationale: Before ear irrigation, the nurse should inspect the tympanic membrane to ensure that it is intact. The irrigating solution should be warmed to 98.6°F (37.0°C) because a solution temperature that is not close to the client's body temperature will cause ear injury, nausea, and vertigo. The affected side should be down following the irrigation to assist in drainage of the fluid. When irrigating, a direct and slow steady stream of irrigation solution is directed toward the wall of the canal, not toward the eardrum. The client is positioned sitting, facing forward with the head in a natural position; if the ear is faced upward, the nurse would not be able to visualize the canal.

A miotic medication has been prescribed for the client with glaucoma and the client asks the nurse about the purpose of the medication. Which response should the nurse provide to the client? 1. "The medication will help dilate the eye to prevent pressure from occurring." 2. "The medication will relax the muscles of the eyes and prevent blurred vision." 3. "The medication causes the pupil to constrict and will lower the pressure in the eye." 4. "The medication will help block the responses that are sent to the muscles in the eye."

3. "The medication causes the pupil to constrict and will lower the pressure in the eye." Rationale: Miotics cause pupillary constriction and are used to treat glaucoma. They lower the intraocular pressure, thereby increasing blood flow to the retina and decreasing retinal damage and loss of vision. Miotics cause a contraction of the ciliary muscle and a widening of the trabecular meshwork. Options 1, 2, and 4 are incorrect.

A client was just admitted to the hospital to rule out a gastrointestinal (GI) bleed. The client has brought several bottles of medications prescribed by different specialists. During the admission assessment, the client states, "Lately, I have been hearing some roaring sounds in my ears, especially when I am alone." Which medication would the nurse identify as the cause of the client's complaint? 1. Doxycycline 2. Atropine sulfate 3. Acetylsalicylic acid 4. Diltiazem hydrochloride

3. Acetylsalicylic acid Rationale: Aspirin is contraindicated for GI bleeding and is potentially ototoxic. The client should be advised to notify the prescribing health care provider so the medication can be discontinued and/or a substitute that is less toxic to the ear can be taken instead. Options 1, 2, and 4 do not have effects that are potentially associated with hearing difficulties.

In preparation for cataract surgery, the nurse is to administer cyclopentolate eye drops at 0900 for surgery that is scheduled for 0915. What initial action should the nurse take in relation to the characteristics of the medication action? 1. Provide lubrication to the operative eye prior to giving the eye drops. 2. Call the surgeon, as this medication will further constrict the operative pupil. 3. Consult the surgeon, as there is not sufficient time for the dilative effects to occur. 4. Give the medication as prescribed; the surgeon needs optimal constriction of the pupil.

3. Consult the surgeon, as there is not sufficient time for the dilative effects to occur. Rationale: Cyclopentolate is a rapidly acting mydriatic and cycloplegic medication. Cyclopentolate is effective in 25 to 75 minutes, and accommodation returns in 6 to 24 hours. Cyclopentolate is used for preoperative mydriasis, not pupil constriction. The nurse should consult with the surgeon about the time of administration of the eye drops since 15 minutes is not adequate time for dilation to occur.

Betaxolol hydrochloride eye drops have been prescribed for a client with glaucoma. Which nursing action is most appropriate related to monitoring for side and adverse effects of this medication? 1. Assessing for edema 2. Monitoring temperature 3. Monitoring blood pressure 4. Assessing blood glucose level

3. Monitoring blood pressure Rationale: Hypotension, dizziness, nausea, diaphoresis, headache, fatigue, constipation, and diarrhea are side and adverse effects of the medication. Nursing interventions include monitoring the blood pressure for hypotension and assessing the pulse for strength, weakness, irregular rate, and bradycardia. Options 1, 2, and 4 are not specifically associated with this medication.