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
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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Naxlex Comprehensive Predictor Exams
Related Questions
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.
Correct Answer is C
Explanation
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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