The nurse is assessing a client who exhibits positive Trousseau's and Chvostek's signs.
What laboratory value would validate these clinical findings? A serum:
potassium 4.2 mEq/L
phosphate 3.0 mg/dL
magnesium 1.8 mEq/L
calcium 6.9 mg/dL
calcium 6.9 mg/dL
The Correct Answer is D
Choice A rationale: A potassium level of 4.2 mEq/L is within the normal range and would not validate Trousseau's and Chvostek's signs.
Choice B rationale: A phosphate level of 3.0 mg/dL is within the normal range and would not validate Trousseau's and Chvostek's signs.
Choice C rationale: A magnesium level of 1.8 mEq/L is within the normal range and would not validate Trousseau's and Chvostek's signs.
Choice D rationale: A calcium level of 6.9 mg/dL is below the normal range and could validate Trousseau's and Chvostek's signs.

Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Choice A rationale: A potassium level of 4.2 mEq/L is within the normal range and would not validate Trousseau's and Chvostek's signs.
Choice B rationale: A phosphate level of 3.0 mg/dL is within the normal range and would not validate Trousseau's and Chvostek's signs.
Choice C rationale: A magnesium level of 1.8 mEq/L is within the normal range and would not validate Trousseau's and Chvostek's signs.
Choice D rationale: A calcium level of 6.9 mg/dL is below the normal range and could validate Trousseau's and Chvostek's signs.

Correct Answer is C
Explanation
Choice A rationale: Skin irritation is a possible side effect of nitroglycerin patches, but it is not the primary reason for removing the patch in this situation.
Choice B rationale: Interactions with other medications are not the primary concern when transitioning from a patch to an intravenous infusion.
Choice C rationale: The removal of the nitroglycerin patch is necessary to avoid drug overdose when starting an intravenous infusion.
Choice D rationale: The loss of the patch is not the primary concern; rather, it is the potential for an overdose.
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