The nurse tells a patient that he will be performing a visual acuity test using the Snellen eye chart. The patient asks how the test is done. The nurse's best reply is:
"You stand 20 feet away from the chart while I test each of your eyes."
The number beside the largest print read is your visual acuity score!
"I will be testing your vision with your reading glasses on."
"You stand 50 feet away from the chart while I test each of your eyes."
The Correct Answer is A
A. The patient should stand 20 feet away from the Snellen chart to accurately measure visual acuity, which is the standard procedure.
B. The number beside the largest print is not the correct visual acuity score; the patient must read progressively smaller lines.
C. Testing with reading glasses is appropriate only for patients who need them for close-up vision, but the Snellen test typically measures distance vision.
D. The distance should be 20 feet, not 50 feet, to ensure proper testing conditions.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. Temperature often decreases in cases of severe blood loss due to shock and hypothermia.
B. A decrease in pulse is unlikely in severe blood loss. The body compensates with an increased heart rate.
C. A decrease in blood pressure is expected in cases of significant blood loss, as the body struggles to maintain adequate circulation.
D. Respirations may increase in response to blood loss, not decrease, as the body attempts to increase oxygen intake.
Correct Answer is A
Explanation
A. The normal response to light in the eye is pupil constriction. This indicates that the optic and oculomotor nerves are functioning properly.
B. While a sluggish reaction can occur in some individuals, a noticeable sluggish response could indicate neurological issues, especially in a head injury.
C. Pupils should constrict in response to light, not dilate, unless there is a significant neurological impairment.
D. Pupil checks should ideally be performed in dim lighting for better visibility of pupillary reactions, not with the room lights on.
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