The practical nurse (PN) is reviewing a client's recent ophthalmic screening test results. Findings of optic neuropathy, loss of peripheral vision, and increased intraocular pressure are consistent with which medical condition?
Glaucoma.
Macular edema.
Cataract.
Diabetic retinopathy.
The Correct Answer is A
Glaucoma is a group of eye diseases that damage the optic nerve and cause vision loss. It is often associated with increased intraocular pressure, which can compress the nerve fibers and reduce blood flow to the retina. The most common type of glaucoma, open-angle glaucoma, causes gradual loss of peripheral vision.
The other options are not correct because:
A. Macular edema is a condition that causes swelling and fluid accumulation in the macula, the central part of the retina that is responsible for sharp and detailed vision. It can cause blurred or distorted vision, but it does not affect the optic nerve or the peripheral vision.
B. Cataract is a condition that causes clouding of the lens, which is the transparent structure that focuses light onto the retina. It can cause blurred, dim, or yellowed vision, but it does not affect the optic nerve or the intraocular pressure.
C. Diabetic retinopathy is a complication of diabetes that damages the blood vessels in the retina and causes bleeding, leakage, or scarring. It can cause blurred, fluctuating, or darkened vision, but it does not affect the optic nerve or the intraocular pressure.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A thready pulse is a weak and rapid pulse that is easily obliterated by light pressure. It indicates poor blood flow and perfusion, and may be caused by conditions such as shock, dehydration, or hemorrhage.
The other options are not correct because:
- A missing pulse is a pulse that is absent or cannot be detected, even with firm pressure. It indicates a complete blockage of blood flow, and may be caused by conditions such as arterial occlusion, embolism, or trauma.
- Light pressure applied to pulse is not a documentation of the pulse quality, but a description of the technique used to palpate the pulse.
- Pulse skips beats is a documentation of an irregular pulse rhythm, not a pulse volume. It indicates that the heart beats are unevenly spaced, and may be caused by conditions such as arrhythmia, stress, or caffeine intake.
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Correct Answer is D
Explanation
This is the factor that the PN should consider the most likely to increase the client's risk for falls because it can cause orthostatic hypotension, dizziness, or fainting, especially when the client changes position or gets up from bed or a chair. The PN should monitor the client's blood pressure and pulse before and after administering the medication and assist the client with ambulation and transfers.
A. An ankle ulcer that is healing slowly is not a major risk factor for falls and may not affect the client's mobility or balance.
B. History of alcohol abuse and cigarette smoking is not a major risk factor for falls unless the client is currently intoxicated or has a chronic lung disease that impairs oxygenation or cognition.
C. Recent weight gain of twenty pounds is not a major risk factor for falls unless it causes joint pain, edema, or difficulty moving.
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