A client is admitted to the emergency department with a magnesium level of 1.2 mg/dL. The nurse is aware that a likely cause of the value is which of the following:

Alcoholism.

Dehydration.

Kidney failure.

Excessive magnesium intake.

Answer and Explanation

The Correct Answer is A

Choice A rationale

Alcoholism is a common cause of hypomagnesemia due to poor dietary intake, increased renal excretion, and gastrointestinal losses. Chronic alcohol consumption leads to malnutrition and loss of magnesium through the urine, contributing to low magnesium levels.

Choice B rationale

Dehydration typically leads to hemoconcentration, which can elevate, rather than decrease, magnesium levels. Thus, it is not usually associated with low magnesium levels.

Choice C rationale

Kidney failure generally causes hypermagnesemia, not hypomagnesemia, because the kidneys cannot efficiently excrete magnesium, leading to its accumulation in the blood.

Choice D rationale

Excessive magnesium intake would result in hypermagnesemia, not hypomagnesemia, as the body accumulates more magnesium than it can excrete.

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Free Nursing Study Resources

Correct Answer is ["0.8"]

Explanation

Step 1 is to divide the dose required by the concentration available. 3,800 units ÷ 5,000 units/mL = 0.76 mL.

The final answer is 0.8 mL.

A. Radiating pain to the left arm. B. Shortness of breath. C. Headache. D. Nausea and vomiting.

Correct Answer is A

Explanation

Choice A rationale

Radiating pain to the left arm is a classic symptom of a myocardial infarction (MI) due to referred pain from the heart.

Choice B rationale

Shortness of breath can also be associated with MI but is not as specific as radiating pain to the left arm.

Choice C rationale

Headache is not a typical symptom of an MI. It is more commonly associated with other conditions.

Choice D rationale

Nausea and vomiting can occur with an MI but are not as specific as radiating pain to the left arm.

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A client is admitted to the emergency department with a magnesium level of 1.2 mg/dL. The nurse is aware that a likely cause of the value is which of the following:

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A nurse is caring for a client who is receiving heparin 3,800 units subcutaneous daily. Available is heparin 5,000 units/mL. How many mL should the nurse administer? (Round the answer to the nearest tenth.)

Correct Answer is ["0.8"]

Explanation

Which of the following clinical manifestations would make the nurse suspect the client is experiencing a myocardial infarction (MI)?

Correct Answer is A

Explanation

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