Nokea
A client has been taught about retinitis pigmentosa (RP). What statement by the client indicates a need for further teaching?
- A. I should continue wearing sunglasses.
- B. Beta carotene, lutein, and zeaxanthin are good supplements.
- C. I may qualify for a retinal transplant one day soon.
- D. Vitamin A has been shown to slow progression of RP.
Correct Answer: C
Rationale: Retinal transplants are not a current or near-future treatment for retinitis pigmentosa. Sunglasses help protect against cataracts, and supplements like beta carotene, lutein, zeaxanthin, and vitamin A may slow RP progression.
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A client asks why blindness occurred from glaucoma. What explanation by the nurse is best?
- A. Because eye pressure was too high, the tissue died.
- B. Glaucoma always leads to permanent blindness.
- C. The traumatic damage to your eye was too great.
- D. The infection occurs so quickly, it can be treated.
Correct Answer: A
Rationale: Glaucoma is caused when the intraocular pressure becomes too high and stays high long enough to cause tissue ischemia and death. At that point, vision loss is permanent. Glaucoma does not always cause blindness, trauma is not the most common cause, and glaucoma is not an infection.
A client is brought to the emergency department after a car crash. The client has a large piece of glass in the left eye. What action by the nurse takes priority?
- A. Administer a tetanus booster shot.
- B. Ensure a patent airway.
- C. Prepare to irrigate the client's eye.
- D. Turn the client on the unaffected side.
Correct Answer: B
Rationale: Airway always comes first in emergency care. After ensuring a patent airway and providing cervical spine precautions, other care such as administering a tetanus booster shot may be considered. The eye should not be irrigated with a foreign body present.
A client has been prescribed brinzolamide (Azopt). What assessment by the nurse requires consultation with the provider?
- A. Allergy to eggs
- B. Allergy to sulfonamides
- C. Use of beta blockers
- D. History of asthma
Correct Answer: B
Rationale: Brinzolamide is similar to sulfonamides, and an allergic reaction could occur in clients with a sulfonamide allergy. The other findings are not directly related to brinzolamide.
A nurse is seeing clients in the ophthalmology clinic. Which client should the nurse see first?
- A. Client with intraocular pressure reading of 24 mm Hg
- B. Client who has had cataract surgery and has worsening vision
- C. Client whose red reflex is absent on ophthalmologic examination
- D. Client with a tearing, reddened eye with exudate.
Correct Answer: B
Rationale: Worsening vision after cataract surgery indicates a potential infection or other complication, which requires urgent attention. An intraocular pressure of 24 mm Hg is slightly elevated, an absent red reflex may indicate cataracts, and a tearing eye may suggest an infection but is less urgent.
A client is taking timolol (Timoptic) eyedrops. The nurse assesses the clients pulse at 50 beats/min. What action by the nurse is best?
- A. Administer the eyedrops as ordered.
- B. Assess the client for excessive salivation.
- C. Assess the client for shortness of breath.
- D. Hold the eyedrops and notify the provider.
Correct Answer: D
Rationale: Timolol is a beta blocker that can slow the heart rate. A pulse of 50 beats/min warrants holding the eyedrops and notifying the provider. Excessive salivation and shortness of breath are not typically related to timolol.