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. 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.

3. A client is prescribed allopurinol (Zyloprim) for chronic gout. Which instruction should the nurse include in the teaching plan?

• A. Take the medication with a full glass of water.
• B. Increase your intake of purine-rich foods.
• C. Stop taking the medication if you experience a gout attack.
• D. Take the medication with or without food.

Correct answer: A

Rationale: The correct instruction for a client prescribed allopurinol (Zyloprim) for chronic gout is to take the medication with a full glass of water. This helps prevent kidney stones which can be a side effect of the medication. It is important for the client to avoid purine-rich foods to help manage gout symptoms. They should continue taking the medication even during a gout attack as prescribed by the healthcare provider. Allopurinol can be taken with or without food, so there is no need to take it on an empty stomach. Therefore, option A is the correct choice. Options B, C, and D are incorrect as increasing purine-rich foods is not recommended, stopping the medication during a gout attack is not advised, and allopurinol can be taken with or without food.

4. A client who received a kidney transplant is taking azathioprine (Imuran), and the nurse provides instructions about the medication. Which statement by the client indicates a need for further instructions?

• A. I need to watch for signs of infection.
• B. I need to discontinue the medication after 14 days of use.
• C. I can take the medication with meals to minimize nausea.
• D. I need to call the health care provider (HCP) if more than one dose is missed.

Correct answer: B

Rationale: Azathioprine is an immunosuppressant taken for life. Discontinuing the medication after 14 days is incorrect.

5. A client with trigeminal neuralgia tells the nurse that acetaminophen (Tylenol) is taken on a frequent daily basis for relief of generalized discomfort. The nurse reviews the client's laboratory results and determines that which of the following indicates toxicity associated with the medication?

• A. Sodium of 140 mEq/L
• B. Prothrombin time of 12 seconds
• C. Platelet count of 400,000 cells/mm³
• D. A direct bilirubin level of 2 mg/dL

Correct answer: D

Rationale: A direct bilirubin level of 2 mg/dL indicates liver damage, which can be caused by an overdose of acetaminophen. Acetaminophen toxicity can lead to liver injury, manifesting as elevated bilirubin levels and other liver function test abnormalities.

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