The nurse is reviewing laboratory results for a group of patients. Which value should be of most concern to the nurse?

Sodium level 140 mEq/L (136-145 mEq/L)

Magnesium level 1.0 mEq/L (1.3-2.1 mEq/L)

Calcium level 10 mg/dL (9-10.5 mg/dL)

Potassium level 3.5 mEq/L (3.5-5 mEq/L)

Answer and Explanation

The Correct Answer is B

A. Sodium level 140 mEq/L (136-145 mEq/L): This sodium level is within the normal range and is not of concern.

B. Magnesium level 1.0 mEq/L (1.3-2.1 mEq/L): This value is below the normal range, indicating hypomagnesemia, which can cause serious complications such as arrhythmias, neuromuscular irritability, and seizures. This is the most concerning value.

C. Calcium level 10 mg/dL (9-10.5 mg/dL): This calcium level is within the normal range and is not concerning.

D. Potassium level 3.5 mEq/L (3.5-5 mEq/L): This potassium level is at the low end of normal. While it is something to monitor, it is not immediately concerning compared to hypomagnesemia.

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Correct Answer is D

Explanation

A. Increased appetite: Hyponatremia does not typically cause increased appetite.

B. Hyporeflexia: Severe hyponatremia may lead to neurological symptoms, but reflex changes are less common.

C. Constipation: This is unrelated to sodium levels.

D. Headache: Hyponatremia causes cellular swelling, including in the brain, leading to headache, nausea, and neurological symptoms.

A. (Select All that Apply.) B. Bradycardia C. Pale Yellow Urine D. Poor Skin Turgor E. Hypotension F. Flat Neck Veins

Correct Answer is ["C","D","E"]

Explanation

A. Bradycardia: Vomiting and diarrhea usually lead to tachycardia (increased heart rate) as the body compensates for hypovolemia, not bradycardia (slow heart rate).

B. Pale Yellow Urine: Dehydration often causes the urine to become concentrated and dark yellow, not pale yellow.

C. Poor Skin Turgor: Poor skin turgor is a classic sign of dehydration caused by fluid loss.

D. Hypotension: Loss of fluid volume can result in hypotension due to reduced blood circulation.

E. Flat Neck Veins: Dehydration causes reduced venous return, leading to flat neck veins, particularly when lying down.

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The nurse is reviewing laboratory results for a group of patients. Which value should be of most concern to the nurse?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

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Correct Answer is D

Explanation

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Correct Answer is ["C","D","E"]

Explanation

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