A nurse is assessing a client who has a magnesium level of 4.4 mEq/L. Which of the following findings should the nurse expect?
Hypotension
Tachycardia
Muscle cramps
Hyperreflexia
None
None
The Correct Answer is A
A. Hypotension occurs because hypermagnesemia causes vasodilation, which lowers blood pressure. Magnesium acts as a smooth muscle relaxant, decreasing vascular resistance and contributing to hypotension. This is a common clinical finding when magnesium levels exceed the normal range.
B. Tachycardia is not expected with hypermagnesemia. Elevated magnesium levels depress the heart's electrical activity, leading to bradycardia (slow heart rate) instead of tachycardia.
C. Muscle cramps are typically associated with hypomagnesemia, which increases neuromuscular excitability. In hypermagnesemia, neuromuscular function is suppressed, leading to muscle weakness rather than cramps.
D. Hyperreflexia is a symptom of hypomagnesemia, not hypermagnesemia. In hypermagnesemia, neuromuscular activity is depressed, resulting in diminished or absent deep tendon reflexes
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A.
A. Using a cell phone on the ear opposite to the pacemaker helps minimize the risk of electromagnetic interference with the pacemaker function.
B. Engaging in activities such as playing softball may not be appropriate immediately after pacemaker insertion. The client should follow specific activity restrictions as advised by the healthcare provider.
C. While performing arm exercises is generally beneficial for overall health, the client should avoid strenuous activities that may strain the upper body or disrupt the pacemaker leads
immediately after insertion.
D. Pacemaker battery replacement is typically scheduled based on the device's longevity and is performed in a healthcare facility, not the cardiologist's office. The client should follow up regularly with the healthcare provider for device checks and monitoring of battery status.
Correct Answer is D
Explanation
A. Povidone-iodine may be used as a wound cleanser, but the method described here (using cotton balls) is not typically recommended as it can leave fibers in the wound.
B. Administering oral analgesia prior to wound irrigation may be appropriate for pain management but is not directly related to understanding wound irrigation technique.
C. Warming irrigation solution in a microwave oven can lead to uneven heating and potential tissue damage. This method is not recommended for warming irrigation solution.
D. Irrigating the wound from the top to the bottom ensures that contaminants are flushed away from the wound site, reducing the risk of infection and promoting healing. This indicates an understanding of proper wound irrigation technique.
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