Nursing Elites

1. A client with a history of chronic heart failure is prescribed spironolactone (Aldactone). Which of the following statements indicates that the client understands the medication teaching?

• A. I will avoid potassium-rich foods.
• B. I will not use a salt substitute.
• C. I will monitor my weight daily.
• D. I will increase my fluid intake as prescribed.

Correct answer: A

Rationale: The correct statement is 'I will avoid potassium-rich foods.' Spironolactone (Aldactone) is a potassium-sparing diuretic, which can lead to hyperkalemia if potassium intake is not regulated. Therefore, avoiding potassium-rich foods is crucial to prevent this complication. Using a salt substitute can also increase potassium levels. Monitoring weight daily is essential in heart failure management, but it is not specific to spironolactone. Increasing fluid intake as prescribed is generally recommended for heart failure management but is not directly related to spironolactone use.

2. Oxybutynin chloride (Ditropan XL) is prescribed for a client with neurogenic bladder. Which sign would indicate a possible toxic effect related to this medication?

• A. Pallor
• B. Drowsiness
• C. Bradycardia
• D. Restlessness

Correct answer: D

Rationale: Signs of toxicity related to oxybutynin chloride (Ditropan XL) include central nervous system excitation, such as nervousness, restlessness, hallucinations, and irritability. Other signs of toxicity may include hypotension or hypertension, confusion, tachycardia, a flushed or red face, and signs of respiratory depression. Restlessness is a sign of central nervous system excitation, which can indicate a possible toxic effect of this medication.

3. The client has reinforced instructions for taking cholestyramine (Questran). Which statement indicates a need for further instructions?

• A. I will continue taking vitamin supplements.
• B. This medication will help lower my cholesterol.
• C. This medication should only be taken with water.
• D. A high-fiber diet is important while taking this medication.

Correct answer: C

Rationale: The correct answer is C because cholestyramine should not only be taken with water. Flavored products or fruit juices can improve the taste. Choices A, B, and D are all correct statements. It is important for the client to continue taking vitamin supplements, understand that cholestyramine helps lower cholesterol, and maintain a high-fiber diet while taking this medication to enhance its effectiveness.

4. Tamoxifen is prescribed for the client with metastatic breast carcinoma. The nurse understands that the primary action of this medication is to:

• A. Increase DNA and RNA synthesis.
• B. Promote the biosynthesis of nucleic acids.
• C. Increase estrogen concentration and estrogen response.
• D. Compete with estradiol for binding to estrogen in tissues containing high concentrations of receptors.

Correct answer: D

Rationale: The primary action of tamoxifen, an antineoplastic medication used in metastatic breast carcinoma, is to compete with estradiol for binding to estrogen receptors in tissues with high receptor concentrations. By doing so, tamoxifen reduces DNA synthesis and estrogen response, leading to its therapeutic effect in inhibiting the growth of estrogen-sensitive breast cancer cells.

5. 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.

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