A nurse is instructing a nursing student on performing pupillary checks on a patient with a possible head injury. Which statement indicates that the nursing student understands the concept?
"When I shine a light into the patient's eyes, the pupils should constrict."
"It is normal for the pupils to react sluggishly to light."
"When I shine a light into the patient's eyes, the pupils should dilate
"Pupil checks should be performed with the room lights on."
The Correct Answer is A
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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Related Questions
Correct Answer is C
Explanation
A. While pupil response can be an indicator of consciousness, the primary concern when assessing pupils is to check for signs of increased intracranial pressure, such as unequal pupil size.
B. The shape of the pupil is important to assess, but the concern here is typically more about the size and response to light, which can indicate a neurological issue.
C. Unequal pupil sizes (anisocoria) can indicate neurological problems, such as increased intracranial pressure or brain injury, and requires further evaluation.
D. Pupil size changes could indicate a variety of issues, but the focus should be on detecting unequal pupils, which can be a critical sign in head injury patients.
Correct Answer is B
Explanation
A. Dehydration causes a drop in circulating blood volume, which can lead to lower blood pressure, not muffled sounds.
B. When a person is dehydrated, there is less fluid in the bloodstream, which typically causes a decrease in blood pressure.
C. Blood pressure is likely to decrease in dehydration due to reduced circulating volume, rather than remain unchanged.
D. Dehydration will not increase blood pressure; it typically causes a compensatory decrease in blood pressure.
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