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

Answer and Explanation

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.

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Correct Answer is C

Explanation

Choice A rationale: Changing the soiled dressing carefully is important but not specifically associated with caring for a Penrose drain.

Choice B rationale: Pinning the drain to the dressing is not typically done; securing the drain and preventing tension are important.

Choice C rationale: Allowing the drain reservoir to fill completely before emptying it is a crucial nursing action associated with caring for a Penrose drain.

Choice D rationale: Maintaining the negative pressure of the drain is not applicable to a Penrose drain, which relies on gravity drainage.

A. poor tissue perfusion from circulatory insufficiency. B. decreased diffusion of oxygen from the alveoli to the blood. C. lowered oxygen carrying capacity. D. decreased concentration of oxygen in the air.

Correct Answer is B

Explanation

Choice A rationale: Poor tissue perfusion from circulatory insufficiency can affect oxygenation, but fluid in the lungs primarily impacts gas exchange at the alveolar level.

Choice B rationale: Decreased diffusion of oxygen from the alveoli to the blood is a major factor affecting oxygenation when fluid is present in the lungs.

Choice C rationale: Lowered oxygen carrying capacity can affect oxygenation but is not the primary concern in the presence of fluid in the lungs.

Choice D rationale: Decreased concentration of oxygen in the air is not the primary factor affecting oxygenation in a client with fluid in the lungs.

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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:

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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: