A nurse is caring for a client who has a serum potassium level of 5.9 mEq/L. The provider prescribes polystyrene sulfonate. If this medication is effective, the nurse should expect which of the following changes on the client's ECG?

Prolonged PR intervals

Widening QRS Complex

A reduction of a peaked T wave

An increase in T wave amplitude

Answer and Explanation

The Correct Answer is C

Choice A rationale: Prolonged PR intervals are not typically associated with the use of polystyrene sulfonate2.

Choice B rationale: Widening of the QRS complex is not typically seen with the use of polystyrene sulfonate2.

Choice C rationale: Polystyrene sulfonate is used to treat hyperkalemia (high potassium levels). As potassium levels decrease, the peaked T wave seen in hyperkalemia may reduce234.

Choice D rationale: An increase in T wave amplitude is not typically associated with the use of polystyrene sulfonate2.

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Correct Answer is B

Explanation

Choice A rationale: While changes in the ECG can indicate various heart conditions, they are not specific to the effectiveness of therapies for chronic constrictive pericarditis67.

Choice B rationale: Jugular venous distention is a common sign of chronic constrictive pericarditis, and its absence can indicate effective treatment67.

Choice C rationale: Changes in the sedimentation rate are not specific indicators of the effectiveness of therapies for chronic constrictive pericarditis67.

Choice D rationale: The presence of a paradoxical pulse is not a specific indicator of the effectiveness of therapies for chronic constrictive pericarditis67.
So, the correct answer is Choice B, after analyzing all choices.

A. "Heparin does not dissolve clots. It stops new clots from forming" B. "Heparin will begin dissolving clots over the next 24 hours C. "A pharmacist would be a better fit to answer that question. D. "It usually takes heparin at least 3 to 4 days to reach a therapeutic blood level."

Correct Answer is A

Explanation

Choice A rationale: Heparin is an anticoagulant that prevents new clots from forming but does not dissolve existing clots23.

Choice B rationale: Heparin does not directly dissolve clots23.

Choice C rationale: While a pharmacist can provide medication information, it is incorrect to say they would be a better fit to answer this question as nurses are trained in medication education23.

Choice D rationale: While it’s true that it takes time for heparin to reach a therapeutic blood level, this statement could be misleading because heparin does not dissolve clots23.

So, the correct answer is Choice A, after analysing all choices.

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A nurse is caring for a client who has a serum potassium level of 5.9 mEq/L. The provider prescribes polystyrene sulfonate. If this medication is effective, the nurse should expect which of the following changes on the client's ECG?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

Which action by the nurse will determine if therapies ordered for a patient with chronic constrictive pericarditis are effective?

Correct Answer is B

Explanation

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Correct Answer is A

Explanation

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