The nurse is caring for a client with a critically high potassium level. The client has received sodium polystyrene sulfonate (Kayexalate). The nurse determines the medication's effectiveness if the client's repeat serum potassium level is:

4.9 mEq/L

5.5 mEq/L

6.2 mEq/L

5.8 meq/L

Answer and Explanation

The Correct Answer is A

Rationale:
A. A potassium level of 4.9 mEq/L is within the normal reference range (typically 3.5–5.0 mEq/L), indicating that the hyperkalemia has been successfully corrected.
B. A potassium level of 5.5 mEq/L is still above normal and does not suggest full effectiveness of the treatment.
C. A potassium level of 6.2 mEq/L remains critically high and indicates that the medication was not effective.
D. A potassium level of 5.8 mEq/L is still elevated and may continue to pose cardiac risks, suggesting partial or no effectiveness.

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Correct Answer is B

Explanation

Rationale:
A. Retention of carbon dioxide can lead to acidosis, but it is not a direct result of increased hydrogen ions.
B. An increased concentration of hydrogen ions (H⁺) lowers the pH of body fluids, making them acidic.
C. Fluids become alkaline when hydrogen ion concentration is low, not high.
D. Oxygen ions are not released as a response to hydrogen ion concentration changes.

Correct Answer is ["1637"]

Explanation

Rationale:

Military time, also known as the 24-hour clock, is a method of telling time where the hours of the day run from 00:00 to 23:59, rather than resetting at noon and midnight like in standard 12-hour time (AM/PM). 4:37 PM in military time is 1637.

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The nurse is caring for a client with a critically high potassium level. The client has received sodium polystyrene sulfonate (Kayexalate). The nurse determines the medication's effectiveness if the client's repeat serum potassium level is:

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

The nurse is aware that which of the following results when an increased concentration of hydrogen ions occurs within the body fluids?

Correct Answer is B

Explanation

Convert traditional time of 4:37pm to military time

Correct Answer is ["1637"]

Explanation

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