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 C

Explanation

Choice A rationale: A client newly diagnosed with myocardial infarction would require a nurse with more experience due to the complexity and potential instability of the condition678910.

Choice B rationale: A client complaining of crushing chest pain could be experiencing a serious condition such as a myocardial infarction. This client would require a nurse with more experience678910.

Choice C rationale: A client scheduled for a cardiac catheterization and requires patient teaching would be an appropriate assignment for a new graduate nurse. This client is stable and the task of patient teaching is within the scope of a new graduate678910.

Choice D rationale: A client admitted with unstable angina would require a nurse with more experience due to the potential for rapid changes in the client’s condition678910.
So, the correct answer is C, after analysing all choices.

A. 2 view chest x-ray B. A transesophageal echocardiogram C. Exercise stress test D. A central line placement for thrombolytic medication administration

Correct Answer is B

Explanation

Choice A rationale: While a chest x-ray can provide useful information about the heart and lungs, it is not typically required before an elective cardioversion89.

Choice B rationale: A transesophageal echocardiogram is often performed before cardioversion to check for the presence of any clots in the heart891011.

Choice C rationale: An exercise stress test is not typically required before an elective cardioversion89.

Choice D rationale: A central line placement for thrombolytic medication administration is not typically required before an elective cardioversion89.
So, the correct answer is Choice B, after analyzing 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

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Explanation

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