The nurse notes that a diuretic is listed on the client's medication administration record (MAR). It is most important for the nurse to report to the physician a serum:

sodium 142 mEq/L.

potassium 3.2 mEq/L.

hematocrit 44%.

chloride 100 mEq/L

Answer and Explanation

The Correct Answer is B

Choice A rationale: A sodium level of 142 mEq/L is within the normal range.

Choice B rationale: A potassium level of 3.2 mEq/L is below the normal range, indicating potential hypokalemia and requiring attention, especially if the client is on a diuretic.

Choice C rationale: A hematocrit level of 44% is within the normal range.

Choice D rationale: A chloride level of 100 mEq/L is within the normal range.

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Correct Answer is C

Explanation

Choice A rationale: Medication concentration being half of what it was when administered is not the definition of the trough level.

Choice B rationale: Medication becoming toxic is not the definition of the trough level. Choice C rationale: Blood serum drug concentration being lowest is the correct definition of the trough level.

Choice D rationale: Highest effective drug concentration in the blood being reached is not the definition of the trough level.

A. inject air into the regular insulin, then into the NPH. B. inject air into both vials and withdraw the regular insulin first. C. Inject air into and withdraw the NPH immediately. D. withdraw the regular insulin first.

Correct Answer is B

Explanation

Choice A rationale: Injecting air into the regular insulin and then into the NPH is not the correct sequence.

Choice B rationale: Injecting air into both vials and withdrawing the regular insulin first is the correct sequence when drawing up a combination of short-acting and intermediate- acting insulins.

Choice C rationale: Injecting air into and withdrawing the NPH immediately is not the correct sequence.

Choice D rationale: Withdrawing the regular insulin first is not the correct sequence when preparing a mixed insulin injection.

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