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 D
Explanation
A. Portable suction may be needed for some infants but is not specifically indicated for tetralogy of Fallot.
B. A cervical collar is used for neck support in patients with suspected cervical spine injuries and is not indicated for tetralogy of Fallot.
C. A hemodialyzer is used for renal replacement therapy and is not indicated for tetralogy of Fallot.
D. A pulse oximeter is essential for monitoring oxygen saturation levels in infants with tetralogy of Fallot, as they may experience cyanosis and hypoxemia. Monitoring oxygen saturation helps guide interventions and management.
Correct Answer is D
Explanation
A. Dependent edema may occur in some cases of pericarditis but is not typically a priority finding compared to chest pain, which can indicate cardiac compromise.
B. A pericardial friction rub is a classic finding in pericarditis but is not necessarily the priority over the chest pain, which requires immediate attention.
C. A paradoxical pulse (pulse amplitude decreasing during inspiration) can occur in pericarditis but is not typically as concerning as substernal chest pain.
D. Substernal chest pain is a common and significant symptom of pericarditis, and assessing and managing the pain is a priority to ensure adequate cardiac function and alleviate discomfort.
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