Correct Answer: B

Rationale: When a nurse is assigned to care for a close friend, it is essential to maintain professional boundaries to ensure the best care for the client and the nurse. The most appropriate action for the nurse to take first is to explain the relationship to the charge nurse and ask for reassignment (B). This is important to avoid potential conflicts of interest and maintain objectivity in the care provided. Option A, notifying the friend about confidentiality, may not address the underlying issue of the conflict of interest. Option C, asking the client if the assignment is uncomfortable, may not be appropriate as it puts the client in a difficult position. Option D, accepting the assignment but protecting the client's confidentiality, does not address the conflict of interest and potential ethical issues that may arise from caring for a close friend.

Correct Answer: D

Rationale: Option D is the best response as it allows the client to express her specific concerns, providing the nurse with valuable assessment data. This open-ended question encourages the client to share her worries and feelings, which can guide the nurse in addressing her unique needs. Options A and B make assumptions about the client's concerns based on her weight, potentially invalidating her feelings and inhibiting effective communication. Option C is premature as understanding the client's concerns should precede discussions about the frequency of sexual intercourse, which may not address the core issues the client is facing.

Correct Answer: D

Rationale: When a postoperative client's respiratory rate increases, it is essential to determine the underlying cause. Pain, anxiety, and fluid accumulation in the lungs can lead to tachypnea (increased respiratory rate). Therefore, the priority intervention is to assess if pain is the contributing factor. Encouraging increased ambulation may worsen oxygen desaturation in a client with a rising respiratory rate. Offering a high-carbohydrate snack is not indicated as it can increase carbon metabolism; instead, consider providing an alternative energy source like Pulmocare liquid supplement. Forcing fluids may exacerbate respiratory congestion in a client with a compromised cardiopulmonary system, potentially leading to fluid overload. Therefore, determining the role of pain in tachypnea is crucial for appropriate management.

Correct Answer: B

Rationale: The correct answer is the right cephalic vein. The cephalic vein is a large and superficial vein commonly used for IV access. Documenting the specific anatomic name of the vein used for IV access, such as the cephalic vein, is essential for accurate medical records. Option A, the left brachial vein, is incorrect as the brachial vein is too deep to be accessed for IV infusion. Option C, the dorsal side of the right wrist, is not a recommended IV access site due to fragile veins and potential pain for the patient. Option D, right upper extremity, is too broad and lacks the specificity necessary for precise documentation of the IV access site.

Correct Answer: B

Rationale: To calculate the volume to administer, use the formula: (Volume to administer = (Ordered Dose × Volume on hand) / Dose on hand). In this case, it would be (4 mg × 1 mL) / 5 mg = 0.8 mL. Therefore, the nurse should administer 0.8 mL of diazepam. Choice A (0.2 mL) is incorrect because it miscalculates the dosage. Choice C (1.25 mL) and Choice D (2.0 mL) are incorrect as they do not align with the correct calculation based on the ordered dose and available concentration. The correct answer, 0.8 mL, is derived from accurate dosage calculation and aligns with the formula for IV medication administration, ensuring the safe and effective delivery of the medication to the client.