A nurse is assessing a client in the emergency department when it is noted the left pupil is enlarged and fixed while the right pupil constricts to 2mm when exposed to light. Which of the following is a possible cause of unequal pupil sizing?

Normal variation in pupil size

Age-related changes

Ocular trauma

Excessive light exposure

Answer and Explanation

The Correct Answer is C

A.   There can be slight variations in pupil size but the difference described (one pupil enlarged and fixed, the other constricted and reactive to light) is not considered normal.

B.   Age-related changes in pupil size typically involve a gradual decrease in pupil size, not a sudden and dramatic difference between the two eyes.
C.   Unequal pupil size, especially when one pupil is fixed and dilated, is a classic sign of increased intracranial pressure (ICP), often caused by head trauma.
D.   Exposure to light would cause both pupils to constrict, not one to dilate and fix.

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Correct Answer is ["0.5"]

Explanation

Volume = Dose / Concentration. The dose required is 35 mg, and the concentration available is 75 mg/mL.

35 mg divided by 75 mg/mL, which equals 0.4667 mL. When rounded to the nearest tenth, this is 0.5 mL.

Therefore, the nurse should administer 0.5 mL of meperidine injection per dose.

A. Widening pulse pressure B. Pulse oximetry 96% C. Increased deep tendon reflexes D. Increased heart rate

Correct Answer is D

Explanation

A. Widening pulse pressure is typically associated with increased cardiac output, which is opposite to what happens in hypovolemic shock.
B. Pulse oximetry 96% is a normal oxygen saturation level and does not indicate shock.
C. Increased deep tendon reflexes is not a typical finding in hypovolemic shock.
D. Increased heart rate is a classic compensatory mechanism in response to decreased blood volume. The body tries to maintain blood pressure by increasing heart rate.

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A nurse is assessing a client in the emergency department when it is noted the left pupil is enlarged and fixed while the right pupil constricts to 2mm when exposed to light. Which of the following is a possible cause of unequal pupil sizing?

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Naxlex Comprehensive Predictor Exams

A nurse is preparing to administer meperidine 35 mg IM to a client every 6 hr PRN for pain. Available is meperidine injection 75 mg/mL. How m mL should the nurse administer per dose? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)

Correct Answer is ["0.5"]

Explanation

A nurse in the emergency department is assessing a client who has internal injuries from a car crash. The client is disoriented to time and place, diaphoretic, and his lips are cyanotic. The nurse should anticipate which of the findings as an indication of hypovolemic shock?

Correct Answer is D

Explanation

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A nurse is assessing a client in the emergency department when it is noted the left pupil is enlarged and fixed while the right pupil constricts to 2mm when exposed to light. Which of the following is a possible cause of unequal pupil sizing?