Correct Answer: C

Rationale: Placing the patient on an alternating pressure mattress demonstrates evidence-based practice in pressure injury prevention. Alternating pressure mattresses are designed to change pressure points by alternating pressure across different parts of the body, reducing the risk of pressure injuries. Regularly turning and repositioning the patient (Choice B) is also important in preventing pressure injuries, but an alternating pressure mattress provides additional support and prevention measures. Applying moisturizing lotion (Choice A) and massaging bony prominences (Choice D) may be beneficial for skin care, but they are not proven strategies for pressure injury prevention.

Correct Answer: C

Rationale: Process evaluation focuses on assessing how well the activities and procedures are being conducted to achieve the desired outcomes. In this situation, the long waiting period in the OPD is a process issue related to the efficiency of patient flow and appointment scheduling practices. By implementing a process evaluation, the QA team can analyze and improve the workflow, identify bottlenecks causing delays, and streamline the processes to reduce waiting times for patients. This approach allows the team to make targeted improvements in the processes directly associated with the patient experience, leading to a more effective and efficient OPD operation.

Correct Answer: C

Rationale: Progesterone in oral contraceptives works primarily by inhibiting ovulation. It suppresses the secretion of luteinizing hormone (LH) from the pituitary gland, which is essential for triggering the release of an egg (ovulation) from the ovary. By blocking ovulation, progesterone helps prevent pregnancy by making it less likely for a mature egg to be available for fertilization. This mechanism of action is a key factor in the effectiveness of progesterone-containing contraceptives in preventing pregnancy.

Correct Answer: D

Rationale: All of the components -explanation of the procedure and alternatives to the procedure (I), discussion of potential risks and benefits of the procedure (II), and confirmation that the patient understands the risks, benefits, and any alterations (III) -are essential parts of informed consent. Providing information about the procedure and its alternatives, disclosing potential risks and benefits, and ensuring that the patient comprehends this information are crucial to obtaining valid informed consent prior to any medical procedure.

Correct Answer: B

Rationale: It is important for the nurse to have a direct and easily accessible means of communication with the patient who is expected to be in and out of the hospital due to their chronic illness like leukemia. By asking for the patient's phone number, the nurse can quickly reach out to them for updates, clarification, or any urgent matters that may arise. This direct communication line helps in ensuring continuity of care and addressing the patient's needs promptly. This approach is more practical and efficient compared to options such as asking the patient to call the hospital number listed in the yellow pages or relying on chart information which may not always be up to date. Writing down the number and giving it to the ward clerk may cause unnecessary delays in communication.