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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Correct Answer is C

Explanation

Choice A rationale

Administering insulin when the breakfast tray arrives may not provide sufficient time for the insulin to take effect before the client begins eating, potentially leading to hyperglycemia.

Choice B rationale

Administering insulin at 07: is too early and may result in hypoglycemia before the client eats breakfast.

Choice C rationale

Administering insulin at 07: allows sufficient time for the insulin to take effect before the client eats breakfast, helping to maintain appropriate blood glucose levels.

Choice D rationale

Administering insulin 30 minutes after breakfast is too late and could result in hyperglycemia since the client would have already consumed carbohydrates.

A. Clamp the client's chest tube. B. Increase the client's wall suction. C. Reposition the client. D. Strip the client's chest tube.

Correct Answer is C

Explanation

Choice A rationale

Clamping the chest tube can cause increased pressure in the pleural space and is not appropriate without specific indications.

Choice B rationale

Increasing the wall suction may not relieve the burning sensation and could potentially cause harm.

Choice C rationale

Repositioning the client can help alleviate the burning sensation by adjusting the position of the chest tube and the lung.

Choice D rationale

Stripping the chest tube is not recommended as it can increase intrathoracic pressure and cause damage.

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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

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Correct Answer is C

Explanation

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Correct Answer is C

Explanation

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