Correct Answer: B

Rationale: In the event of a fire, the priority is to ensure everyone's safety. Therefore, the nurse's initial action should be to evacuate the room. Calling for assistance can be done while evacuating, ensuring help is on the way. Attempting to put out the fire can be dangerous and may delay evacuation. Turning off the oxygen supply is not the first step in this situation, as the immediate concern is to remove individuals from the potential danger.

Correct Answer: B

Rationale: The correct answer is to apply a moisture-retentive dressing. This type of dressing promotes a moist wound environment, which is crucial for wound healing. Applying a heating pad can lead to tissue damage, while daily wound irrigation can disrupt the wound healing process. Applying an ice pack is not recommended for promoting wound healing in this scenario.

Correct Answer: B

Rationale: The correct answer is B: Bladder distention. Bladder distention is a sign of catheter occlusion because it indicates a failure to drain urine properly. Bladder spasms (Choice A) are more commonly associated with bladder irritability rather than catheter occlusion. Frequent urination (Choice C) is unlikely in a client with an indwelling catheter as the urine should be draining continuously. Hematuria (Choice D) refers to blood in the urine and is not typically a direct sign of catheter occlusion.

Correct Answer: B

Rationale: The correct lifestyle modification that the nurse should emphasize for a client with hypertension is to increase fluid intake to 2 liters per day. Proper hydration helps manage hypertension by supporting kidney function in regulating blood pressure and by diluting sodium levels in the body. Decreasing potassium intake (Choice A) is not recommended, as potassium-rich foods like fruits and vegetables are beneficial for blood pressure control. Avoiding foods high in calcium (Choice C) is not directly related to managing hypertension, and increasing sodium intake (Choice D) is contraindicated as excess sodium can elevate blood pressure.

Correct Answer: B

Rationale: Inspecting feet daily for injuries is crucial for clients with diabetes to prevent unnoticed wounds from becoming infected. This instruction is the most important as it helps in early detection and management of foot problems. Choice A is incorrect because applying lotion between the toes can lead to excessive moisture, increasing the risk of fungal infections. Choice C is wrong as wearing shoes indoors can also lead to foot issues. Choice D is incorrect because cutting toenails in a rounded shape can result in ingrown toenails, posing a risk for infection.