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

Radiating pain to the left arm.

Shortness of breath.

Headache.

Nausea and vomiting.

Answer and Explanation

The Correct Answer is A

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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Correct Answer is A

Explanation

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.

Correct Answer is ["31"]

Explanation

Step 1 is: Convert hours to minutes: 8 hours × 60 minutes/hour = 480 minutes.

Step 2 is: Calculate the drops/minute: (1000 mL ÷ 480 minutes) × 15 gtts/mL.

Step 3 is: Perform the division: 1000 mL ÷ 480 minutes ≈ 2.0833 mL/min.

Step 4 is: Perform the multiplication: 2.0833 mL/min × 15 gtts/mL ≈ 31.25 drops/min.

Step 5 is: Round the answer to the nearest whole number: 31 drops/min.

Final calculated answer: 31 drops/min.

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

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

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:

Correct Answer is A

Explanation

Correct Answer is ["31"]

Explanation

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