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. The infant's eyes turn toward the light - This is the expected finding known as the "fixation reflex," where infants naturally turn their eyes toward a light source.
B. The infant's head turns away from the light - This would not be an expected finding during a vision screening; it may suggest a different reflex or issue.
C. The infant's eyes remain focused toward the floor - This would not be an expected finding during a vision screening; it may suggest a different visual or developmental concern.
D. The infant closes their eyes - Closing the eyes in response to light is not the typical response during a vision screening for infants.
Correct Answer is B
Explanation
A. Beef liver - Beef liver is high in cholesterol and should be limited in the diet of someone with increased cholesterol levels.
B. Egg whites - Egg whites are low in cholesterol and can be a good source of protein for someone with increased cholesterol levels. It's the yolk of the egg that contains most of the cholesterol, so recommending egg whites is a good choice.
C. Steamed clams - Clams are low in cholesterol, but they are high in sodium, which may not be recommended for someone with increased cholesterol levels, depending on their overall dietary needs.
D. Broiled lobster - Lobster is high in cholesterol and should be limited in the diet of someone with increased cholesterol levels.
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