The nurse is preparing to administer sodium polystyrene sulfonate (Kayexalate) rectally to a patient with an irregular pulse and weakness of the lower extremities.
What laboratory finding does the nurse determine is the reason for this treatment?

Hypokalemia.

Hyperkalemia.

Hyponatremia.

Hypocalcemia.

Answer and Explanation

The Correct Answer is B

Choice A rationale

Hypokalemia involves low potassium levels and is not treated with sodium polystyrene sulfonate. This drug is used to treat elevated potassium levels.

Choice B rationale

Hyperkalemia indicates high potassium levels in the blood. Sodium polystyrene sulfonate (Kayexalate) works by exchanging sodium ions for potassium ions in the intestines, thereby lowering blood potassium levels.

Choice C rationale

Hyponatremia, or low sodium levels, is not treated with sodium polystyrene sulfonate, which targets potassium removal.

Choice D rationale

Hypocalcemia refers to low calcium levels and is unrelated to the action of sodium polystyrene sulfonate, which addresses potassium imbalance.

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Correct Answer is ["0.8"]

Explanation

Step 1 is to divide the dose required by the concentration available. 3,800 units ÷ 5,000 units/mL = 0.76 mL.

The final answer is 0.8 mL.

A. Prepare the client for lithotripsy to break up the stones. B. Order a renal ultrasound to assess for the presence and location of the stones. C. Administer pain medication as prescribed. D. Initiate intravenous (IV) fluid therapy.

Correct Answer is C

Explanation

Choice A rationale

Preparing the client for lithotripsy is important for treatment but is not the immediate highest priority in an emergency setting. Immediate pain management takes precedence.

Choice B rationale

Ordering a renal ultrasound is necessary for assessing the stones but comes after stabilizing the client's acute symptoms, including managing pain.

Choice C rationale

Administering pain medication as prescribed is the highest priority because renal colic causes severe pain. Immediate pain relief is crucial for the client's comfort and to facilitate further diagnostic and therapeutic interventions.

Choice D rationale

Initiating IV fluid therapy is important for hydration and possibly aiding stone passage but follows after addressing the acute pain.

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The nurse is preparing to administer sodium polystyrene sulfonate (Kayexalate) rectally to a patient with an irregular pulse and weakness of the lower extremities.What laboratory finding does the nurse determine is the reason for this treatment?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A nurse is caring for a client who is receiving heparin 3,800 units subcutaneous daily. Available is heparin 5,000 units/mL. How many mL should the nurse administer? (Round the answer to the nearest tenth.)

Correct Answer is ["0.8"]

Explanation

A client is admitted to the emergency room with renal colic due to renal lithiasis (stones). What is the nurse's highest priority in managing care for this client?

Correct Answer is C

Explanation

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The nurse is preparing to administer sodium polystyrene sulfonate (Kayexalate) rectally to a patient with an irregular pulse and weakness of the lower extremities.
What laboratory finding does the nurse determine is the reason for this treatment?