A nurse who is mentoring a graduate nurse explains the correlation between severe blood loss and the effect on the client's mean arterial pressure (MAI The graduate nurse demonstrates correct understanding when he states which of the following:

It raises cardiac output and MAP.

It causes vasoconstriction and increased MAP.

There is no direct correlation to MAP.

Lower blood volume lowers MAP.

Answer and Explanation

The Correct Answer is D

A.   Severe blood loss actually decreases blood volume, which leads to decreased cardiac output and ultimately lower MAP.
B.   While it's true that the body initially responds to blood loss by vasoconstricting to maintain blood pressure, this compensatory mechanism can only last for so long. As blood loss continues, MAP will decrease.
C.   There is no direct correlation to MAP. MAP is directly influenced by cardiac output and systemic vascular resistance (SVR). Blood volume is a major determinant of both.
D.   A decrease in blood volume leads to decreased preload, which reduces cardiac output. This, in turn, lowers MAP.

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Correct Answer is C

Explanation

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.

A. Hypotension B. Muscle pain C. Ototoxicity D. Hyperthermia

Correct Answer is A

Explanation

A. Verapamil, as a calcium channel blocker, can cause vasodilation (widening of blood vessels), which can lead to a decrease in blood pressure. Monitoring for hypotension is crucial when administering verapamil, especially via IV bolus, as it can rapidly lower blood pressure and potentially lead to symptoms such as dizziness, lightheadedness, or fainting.
B. Muscle pain is not a common or expected adverse effect of verapamil. While some medications might cause muscle-related symptoms, verapamil is more commonly associated with cardiovascular effects, such as hypotension and bradycardia, rather than muscle pain.
C. Ototoxicity is not a known adverse effect of verapamil. Ototoxicity is more commonly associated with other classes of drugs, such as certain antibiotics (e.g., aminoglycosides) or diuretics. Verapamil primarily affects the cardiovascular system, so ototoxicity is not a concern with this medication.
D. Hyperthermia is not a common adverse effect of verapamil. Verapamil does not typically affect body temperature regulation. Conditions associated with hyperthermia are more likely related to infections, overheating, or certain other medications, but not verapamil.

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A nurse who is mentoring a graduate nurse explains the correlation between severe blood loss and the effect on the client's mean arterial pressure (MAI The graduate nurse demonstrates correct understanding when he states which of the following:

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Naxlex Comprehensive Predictor Exams

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?

Correct Answer is C

Explanation

A nurse is preparing to administer verapamil by IV bolus to a client who is having cardiac dysrhythmias. For which of the following adverse effects should the nurse monitor when giving this medication?

Correct Answer is A

Explanation

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