A nurse is assessing the pupil size in a patient and can expect which one as an expected finding?
2 mm
6 mm
8mm
4 mm
The Correct Answer is D
A) 2 mm: A pupil size of 2 mm would be considered small and is generally indicative of miosis, which can occur due to certain medications, increased intracranial pressure, or other factors. A size of 2 mm is not typically expected as a normal finding for pupil size in healthy individuals.
B) 6 mm: While 6 mm is within the upper normal range for pupil size, it is on the larger end. Pupils usually range from 3 mm to 6 mm in size under normal lighting conditions. However, pupils dilating to 6 mm can occur in response to low light conditions or sympathetic stimulation.
C) 8 mm: A pupil size of 8 mm would be considered dilated (mydriasis) and is abnormal under normal lighting conditions. Such a large pupil may suggest conditions like drug use, neurological issues, or other medical concerns that need to be assessed.
D) 4 mm: A pupil size of 4 mm is considered a normal and expected finding under standard lighting conditions. It falls within the typical range for adult pupil size and reflects a healthy, functional response to ambient light conditions. This size is within the commonly observed range for normal pupils.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A) Hyperopia: Hyperopia, also known as farsightedness, is a refractive error where distant objects can be seen clearly, but close objects appear blurry. This condition occurs when the eyeball is too short or the cornea has too little curvature, causing light entering the eye to focus behind the retina. People with hyperopia often experience difficulty reading or seeing objects up close but can see distant objects more clearly.
B) Myopia: Myopia, or nearsightedness, is the opposite of hyperopia. It is a refractive error where nearby objects are seen clearly, but distant objects appear blurry. This occurs when the eyeball is too long or the cornea has too much curvature, causing light to focus in front of the retina. Myopia affects distance vision, not close vision.
C) Mydriasis: Mydriasis refers to the dilation of the pupils, which can occur as a result of various factors, including certain medications, lighting conditions, or neurological issues. It is not related to the refractive errors such as farsightedness or nearsightedness and does not describe a condition involving clarity of vision at different distances.
D) Miosis: Miosis is the opposite of mydriasis and refers to the constriction of the pupils. It typically occurs in response to bright light or certain medications. Like mydriasis, miosis is not related to refractive errors or the clarity of vision at different distances, and does not describe farsightedness.
Correct Answer is D
Explanation
A) Ptosis: Ptosis refers to the drooping of the upper eyelid, often caused by muscle weakness or nerve damage. It does not describe the condition of unequal pupil sizes, which is the issue in the question. Ptosis affects eyelid position, not the pupil size.
B) Strabismus: Strabismus refers to the misalignment of the eyes, where they do not look in the same direction. This condition can cause one eye to turn inward, outward, upward, or downward, but it does not relate to unequal pupil size. Strabismus is a misalignment issue rather than a size discrepancy of the pupils.
C) Exophthalmos: Exophthalmos refers to the protrusion of the eyeballs, which can occur in conditions like Graves' disease. It does not pertain to unequal pupil sizes, but rather to the positioning of the eyes themselves.
D) Anisocoria: Anisocoria is the term used to describe a condition in which the pupils are unequal in size. This condition can be physiological (normal for some individuals) or pathological, and it can result from various causes such as neurological issues, trauma, or certain medications. This is the appropriate term to document when noting unequal pupil sizes.
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