Correct Answer: A

Rationale: The nurse's best response should be to provide accurate information and manage the patient's expectations realistically. Tamoxifen is known to have a slight protective effect in reducing the risk of developing breast cancer in high-risk individuals like the patient in the scenario. However, it is not a guarantee against developing breast cancer. It is essential for the nurse to convey this information to the patient to ensure that she understands the benefits and limitations of Tamoxifen therapy. Additionally, discussing potential side effects and risks associated with Tamoxifen, such as an increased risk of osteoporosis, is important for the patient to make an informed decision about her health care.

Correct Answer: A

Rationale: Rho(D) immune globulin (RhoGAM) needs to be administered within 72 hours postpartum to Rh-negative patients who have given birth to Rh-positive infants to prevent Rh sensitization. The patient delivered at 6:30 AM on January 10, so the RhoGAM should be administered prior to that time on January 13, which is 72 hours postpartum. Therefore, the correct choice is A. 6:30 AM on January 10.

Correct Answer: C

Rationale: Megestrol is a synthetic progestational agent that has been found to promote significant weight gain in AIDS patients with wasting syndrome by increasing body fat stores. It is commonly used to stimulate appetite and increase caloric intake in patients experiencing anorexia and weight loss due to various medical conditions, including AIDS-related wasting. Megestrol works by increasing appetite and improving food intake, leading to weight gain and improved nutritional status in patients with HIV/AIDS. It has been shown to be effective in reversing weight loss and improving quality of life in these patients. Therefore, the drug megestrol is the most appropriate choice for promoting weight gain in AIDS patients with wasting syndrome and anorexia.

Correct Answer: A

Rationale: Nausea and vomiting are common adverse effects of chemotherapy. Administering an antiemetic helps to prevent or reduce these symptoms in patients undergoing chemotherapy. By managing nausea and vomiting, the patient's overall well-being and quality of life during treatment can be improved. Therefore, providing an antiemetic medication is essential in combating these adverse effects and promoting patient comfort and compliance with treatment.

Correct Answer: D

Rationale: The correct sequence for drawing up a prescribed amount of sterile solution ordered is as follows: 6, 5, 1, 3, 2, 4.