Nursing Elites

1. A healthcare professional prepares to administer sodium polystyrene sulfonate (Kayexalate) to a client. Before administering the medication, the professional reviews the action of the medication and understands that it:

• A. Releases bicarbonate in exchange for primarily sodium ions
• B. Releases sodium ions in exchange for primarily potassium ions
• C. Releases potassium ions in exchange for primarily sodium ions
• D. Releases sodium ions in exchange for primarily bicarbonate ions

Correct answer: B

Rationale: Sodium polystyrene sulfonate, such as Kayexalate, is a cation exchange resin that functions by releasing sodium ions in exchange for primarily potassium ions. This medication is commonly used to treat hyperkalemia, a condition characterized by elevated levels of potassium in the blood.

2. A client receiving nitrofurantoin (Macrodantin) calls the health care provider's office complaining of side effects related to the medication. Which side effect indicates the need to stop treatment with this medication?

• A. Nausea
• B. Diarrhea
• C. Anorexia
• D. Cough and chest pain

Correct answer: D

Rationale: Pulmonary reactions such as cough and chest pain are serious side effects associated with nitrofurantoin that require immediate discontinuation of the medication to prevent potential severe respiratory complications.

3. The client with ovarian cancer is being treated with vincristine (Oncovin). The nurse monitors the client, knowing that which of the following indicates a side effect specific to this medication?

• A. Diarrhea
• B. Hair loss
• C. Chest pain
• D. Numbness and tingling in the fingers and toes

Correct answer: D

Rationale: The correct answer is D: Numbness and tingling in the fingers and toes. Vincristine is known to cause peripheral neuropathy as a side effect, resulting in numbness and tingling in the fingers and toes. Diarrhea, hair loss, and chest pain are not typically associated with vincristine use.

4. A client is prescribed atorvastatin (Lipitor) for hyperlipidemia. Which instruction should the nurse include in the teaching plan?

• A. Take the medication in the morning.
• B. Avoid consuming grapefruit juice.
• C. Increase intake of dairy products.
• D. Take the medication with food.

Correct answer: B

Rationale: The correct instruction for the nurse to include in the teaching plan is to advise the client to avoid consuming grapefruit juice. Grapefruit juice can increase the risk of atorvastatin (Lipitor) toxicity by inhibiting its metabolism. Atorvastatin is typically taken in the evening because cholesterol synthesis occurs at night. Increasing dairy intake is not specifically recommended for atorvastatin use, and the medication can be taken with or without food.

5. A client who is taking hydrochlorothiazide (HydroDIURIL, HCTZ) has been started on triamterene (Dyrenium) as well. The client asks the nurse why both medications are required. The nurse formulates a response, based on the understanding that:

• A. Both are weak potassium-losing diuretics.
• B. The combination of these medications prevents renal toxicity.
• C. Hydrochlorothiazide is less expensive, so using a combination of diuretics is cost-effective.
• D. Triamterene is a potassium-sparing diuretic, whereas hydrochlorothiazide is a potassium-losing diuretic.

Correct answer: D

Rationale: The combination of triamterene and hydrochlorothiazide is used because triamterene is a potassium-sparing diuretic, which helps retain potassium, while hydrochlorothiazide is a potassium-losing diuretic, which promotes potassium excretion. This combination helps balance potassium levels in the body, preventing imbalances that can occur when using potassium-losing diuretics alone.

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