Which refractive error describes the vision of a patient for whom nearby objects are clear but objects at a distance are blurred?
Hyperopia.
Myopia
Astigmatism
Presbyopia
The Correct Answer is B
A. Hyperopia (farsightedness) causes difficulty seeing close objects.
B. Myopia, or nearsightedness, causes difficulty seeing distant objects clearly while nearby objects remain clear.
C. Astigmatism results in blurred vision at all distances due to an irregularly shaped cornea.
D. Presbyopia is age-related difficulty in focusing on near objects due to lens rigidity.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. Nicardipine is a calcium channel blocker used for blood pressure management, not for decreasing ICP.
B. Dopamine is used for shock or hypotension but does not address ICP.
C. Mannitol is an osmotic diuretic used to decrease ICP by drawing fluid out of the brain and reducing swelling.
D. Phenytoin is an anticonvulsant used to prevent seizures, but it does not directly affect ICP.
Correct Answer is C
Explanation
A. Monitoring for CSF leakage is crucial to avoid infection and to maintain ICP accuracy.
B. Hyper-oxygenation may be used in certain cases but is not the priority.
C. Aseptic technique for all procedures and dressing changes is critical to prevent infection.
D. Administering IV mannitol can be important, but aseptic technique is the priority to prevent infection.
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