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During an assessment, the nurse covers the client's right eye and then observes a shift in the client's gaze after the eye is uncovered. Which conclusion should the nurse make about the results of the test?
- A. The client has opacity of the lens.
- B. The client has absence of the blink reflex.
- C. The client has increased intraocular pressure.
- D. The client has weakness in the extraocular muscles.
Correct Answer: D
Rationale: Covering and then uncovering the client's eye and then observing for a shift in the client's gaze is the cover-uncover test used to detect weakness in the extraocular muscles. Lens opacity is detected by direct observation. Stroking the eyelashes will evoke the blink reflex. The intraocular pressure is measured by tonometry.
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The client recently diagnosed with age-related macular degeneration (AMD) in both eyes returns to the clinic for a follow-up appointment. Which assessment will the nurse be certain to include during the visit?
- A. Stools for occult blood
- B. Blood glucose levels
- C. Screening for depression
- D. Screening for hearing loss
Correct Answer: C
Rationale: The nurse should assess for depression because loss of vision can affect functional ability, mood, and quality of life. Depression frequently develops within a few months after AMD is diagnosed in both eyes. GI bleeding, blood glucose, and hearing loss are not directly related to AMD.
The client tells the nurse about being diagnosed with 'wet type' macular degeneration. Which finding should the nurse expect to observe when examining the client's eyes using an ophthalmoscope?
- A. Growth of abnormal blood vessels in the macula has occurred.
- B. Structures in the macula have atrophied.
- C. The lens of the eye has become cloudy.
- D. The edge of the cornea has a thin grayish arc.
Correct Answer: A
Rationale: The 'wet type' of macular degeneration results from the growth of abnormal blood vessels in the macula. The blood vessels often leak fluid and blood. Atrophy occurs in dry macular degeneration, cloudy lens indicates cataract, and corneal arcus is a normal finding in older clients.
The client with severe otitis media and mastoiditis is prescribed levofloxacin IV, 250 mg every 12 hours. The medication is diluted in 100 mL of NS. To deliver the antibiotic in 30 minutes, the nurse must infuse the solution at a rate of how many mL per hour?
- A. 200
Correct Answer: A
Rationale: The rate of IV infusion is calculated as follows: 100 mL over 30 minutes equals X mL over 60 minutes. Thus, 100/30 = X/60, so X = (100 × 60) / 30 = 200 mL/hr.
The nurse is administering eye drops to a client. Which action is correct?
- A. Ask the client to report any blurring of vision and difficulty focusing that occurs after the administration of eye drops.
- B. Apply gentle pressure to the nasolacrimal canal for one to two minutes after instillation to prevent systemic absorption.
- C. Have the client lie down with eyes closed for 45 minutes after giving drops.
- D. Gently pull the lower lid down and place medicine in the center of the eye.
Correct Answer: B
Rationale: Applying pressure to the nasolacrimal canal prevents systemic absorption of eye drops, enhancing safety and efficacy.
The nurse is questioning the client about vision changes. Which symptom indicates that the client may be developing a cataract?
- A. Blurred vision, worsening at night
- B. Shooting pain in the back of one eye
- C. Increased frequency of headaches
- D. Seeing spots in the vision field of one eye
Correct Answer: A
Rationale: The lens opacity from a developing cataract diminishes vision. Blurriness and decreased night vision are early symptoms. Shooting eye pain is often associated with a subarachnoid hemorrhage, not a cataract. Headaches are not associated with cataract formation. Floating dark spots in the vision field are associated with bleeding within the eye that occurs with detached retina.