Correct Answer: B

Rationale: The correct answer is to assess the patient's respiratory rate. When a patient is receiving opioids, it is crucial to monitor their respiratory rate as opioids can depress the respiratory system, leading to respiratory depression and potential respiratory failure. Monitoring blood pressure, oxygen saturation, and heart rate are important assessments as well, but the priority lies in assessing respiratory rate due to the risk of respiratory depression associated with opioid use.

Correct Answer: C

Rationale: A fever of 101°F is the most concerning finding when assessing a postoperative patient for signs of infection. Fever can indicate an inflammatory response to an infection, and in a postoperative patient, it can signal a surgical site infection or a systemic infection. Prompt attention is necessary to prevent complications such as sepsis. Mild redness at the incision site and increased drainage can be expected in the early postoperative period due to the normal healing process. A normal white blood cell count does not rule out infection as it can be influenced by various factors, and some infections may not initially cause a rise in white blood cells.

Correct Answer: D

Rationale: The correct answer is D: Clean hands thoroughly before and after patient contact. Hand hygiene is crucial for maintaining medical asepsis in a healthcare setting as it helps prevent the spread of infections between patients and healthcare workers. Choice A is incorrect because instruments should be sterilized regularly, not just when visibly contaminated. Choice B is incorrect as sterile gloves are not required for all patient interactions, only for specific procedures. Choice C is incorrect because patient areas should be disinfected regularly throughout the day, not just at the end of the day.

Correct Answer: B

Rationale: The presence of chronic illness is the factor that places a patient at the highest risk for infection. Chronic illness can compromise the immune system's ability to fight off infections effectively, making individuals more susceptible to getting sick. Option A, a healthy immune system, actually reduces the risk of infection. Option C, being well-nourished, can support overall health but does not directly correlate with infection risk. While age over 65 years is a risk factor for certain infections due to age-related immune system changes, chronic illness has a more significant impact on infection risk.

Correct Answer: B

Rationale: The correct action to promote healing in a patient with impaired skin integrity is to use sterile saline to clean the wound. Sterile saline helps prevent infection and promotes healing of wounds by keeping the area clean. Applying a dry, sterile dressing (Choice A) may not be effective as it does not address the need for wound cleaning. Applying a warm compress (Choice C) may not be suitable for all types of wounds and could potentially cause harm. Keeping the wound open to air (Choice D) is generally not recommended as it can lead to infection and slow down the healing process.