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 ["A","B","C","D"]

Explanation

Choice A rationale: Vitamin K is given to counteract the effects of anticoagulants like warfarin, which might have been administered to manage atrial fibrillation1.

Choice B rationale: Heparin is an anticoagulant often used in the initial management of atrial fibrillation to prevent the formation of clots2.

Choice C rationale: PT, PTT, and INR are lab tests used to monitor the effectiveness of anticoagulation therapy1.

Choice D rationale: Coumadin (warfarin) is a long-term anticoagulant therapy often used in the management of atrial fibrillation1.

Choice E rationale: Verapamil is a calcium channel blocker, not typically the first line of treatment for atrial fibrillation3.

So, the correct answer is Choices A, B, C, and D, after analyzing all choices.

A. Docusate sodium 200 mg PO at bedtime B. Meloxicam 15 mg PO daily C. Regular insulin 8 units subcutaneous before meals D. Fentanyl 25 mcg/hr transdermal patch

Correct Answer is C

Explanation

A. Docusate sodium 200 mg PO at bedtime:

This prescription seems appropriate. Docusate sodium is a stool softener commonly used to prevent or alleviate constipation. Taking it at bedtime can help ensure a regular bowel movement in the morning.

B. Meloxicam 15 mg PO daily:

This prescription is generally appropriate. Meloxicam is a nonsteroidal anti-inflammatory drug (NSAID) used for pain and inflammation. The daily dosing is common, but the nurse should assess for any contraindications or potential issues with the patient's renal function since NSAIDs can affect the kidneys.

C. Regular insulin 8 units subcutaneous before meals:

This prescription requires clarification. While the prescription indicates the correct medication and route (regular insulin subcutaneously), it lacks specificity regarding the timing in relation to meals. Regular insulin is typically given 30 minutes before meals to control postprandial blood glucose levels. The nurse should contact the provider to confirm the appropriate timing.

D. Fentanyl 25 mcg/hr transdermal patch:

This prescription seems appropriate. Fentanyl is a potent opioid analgesic, and a transdermal patch provides continuous pain relief over an extended period. The dose is specified in micrograms per hour (mcg/hr), which is a common method for administering continuous medications

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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

Correct Answer is ["A","B","C","D"]

Explanation

A nurse is reviewing medications prescribed for a client. For which of the following prescriptions should the nurse contact the provider for clarification?

Correct Answer is C

Explanation

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