Correct Answer: B

Rationale: The correct answer is B: 'Keep the oxygen equipment away from heat sources.' Placing oxygen equipment near heat sources can lead to fire hazards due to the flammability of oxygen. Cotton bedding or wool blankets are not directly related to oxygen safety measures. Allowing electronic devices near the oxygen supply can increase the risk of fire due to potential sparks or heat generated.

Correct Answer: B

Rationale: The correct answer is B: Autonomy. Autonomy in healthcare refers to respecting a patient's right to make decisions about their own care, even if those decisions may not align with healthcare providers' recommendations. In this scenario, the client's decision not to have surgery despite significant blockages in his coronary arteries demonstrates his autonomy in making choices about his own health. Choice A, Fidelity, refers to the concept of keeping promises and being faithful to commitments, which is not applicable in this situation. Choice C, Justice, involves fairness and equal treatment in healthcare, which is not the primary principle at play when a patient exercises autonomy. Choice D, Non-maleficence, relates to the principle of doing no harm, which is important but not directly relevant to the client's decision to refuse surgery.

Correct Answer: D

Rationale: The correct action for the nurse to take when preparing to insert an indwelling urinary catheter is to open the catheterization kit away from the body. This is crucial to maintain the sterility of the kit and the procedure. Using sterile gloves (Choice A) is important, but it is not specific to this step. Lubricating the catheter with water (Choice B) is incorrect as it should be lubricated with a water-soluble lubricant. Inserting the catheter using clean technique (Choice C) is incorrect as indwelling urinary catheter insertion requires sterile technique to prevent infections.

Correct Answer: C

Rationale: Instructing the client to focus on gradually resuming self-care tasks is the most appropriate strategy to promote independence while managing fatigue. This approach encourages the client to regain autonomy by engaging in self-care activities at their own pace. Requesting an occupational therapy consult (Choice A) may be beneficial but does not directly address the client's concern regarding fatigue and self-care. Assigning assistive personnel (Choice B) may hinder the client's independence by taking over tasks the client could potentially perform. Asking about family assistance (Choice D) does not empower the client to regain self-care abilities.

Correct Answer: B

Rationale: When a client has a prescription for mechanical restraints, it is essential to provide continuous monitoring for their safety and to observe any behavioral changes. Having a staff member stay with the client continuously allows for immediate intervention if needed. Documenting the client's status every 60 minutes (Choice A) may not provide real-time monitoring, which is crucial in this situation. While measuring vital signs every 4 hours (Choice C) is important, continuous observation takes precedence in this scenario. Obtaining a prescription for the restraints every 8 hours (Choice D) is not a necessary intervention once the initial prescription is in place.