Nursing Elites

1. 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.

2. The clinic nurse is performing an admission assessment on a client. The nurse notes that the client is taking azelaic acid (Azelex). Because of the medication prescription, the nurse would suspect that the client is being treated for:

• A. Acne
• B. Eczema
• C. Hair loss
• D. Herpes simplex

Correct answer: A

Rationale: Azelaic acid (Azelex) is a topical medication used to treat mild to moderate acne. It works by suppressing the growth of Propionibacterium acnes and decreasing the proliferation of keratinocytes in the skin. Therefore, if a client is prescribed azelaic acid, the nurse would suspect that the client is being treated for acne.

3. A client with hyperparathyroidism has a serum calcium level of 13 mg/dL. Which medication should be prepared to administer as prescribed to the client?

• A. Calcium chloride
• B. Calcium gluconate
• C. Calcitonin (Miacalcin)
• D. Large doses of vitamin D

Correct answer: C

Rationale: The normal serum calcium level ranges from 8.6 to 10.0 mg/dL. In hypercalcemia, as seen in this client, Calcitonin (Miacalcin) is used to decrease plasma calcium levels by inhibiting bone resorption. Calcium gluconate and calcium chloride are typically used for hypocalcemia, not hypercalcemia. Large doses of vitamin D should be avoided in hypercalcemia as they can exacerbate hypercalcemia by increasing calcium absorption from the intestines.

4. A client is prescribed warfarin (Coumadin) for atrial fibrillation. Which statement by the client indicates a need for further teaching?

• A. I will avoid foods high in vitamin K.
• B. I will take the medication at the same time each day.
• C. I will use an electric razor to shave.
• D. I will take aspirin if I have a headache.

Correct answer: D

Rationale: Clients taking warfarin (Coumadin) should avoid aspirin unless prescribed by their healthcare provider, as it can increase the risk of bleeding. The other statements are correct and do not indicate a need for further teaching. Taking aspirin along with warfarin can potentiate the anticoagulant effects of warfarin, leading to an increased risk of bleeding complications.

5. 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.

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