Correct Answer: A

Rationale: The correct answer is to ensure that electrical cords are not frayed. Frayed electrical cords pose a fire hazard when oxygen is in use. Keeping oxygen tanks in a horizontal position (Choice B) is important to prevent leaks but is not the priority compared to fire safety. Storing extra oxygen tanks in a closed closet (Choice C) is also important but not as immediate as preventing fire hazards. Applying petroleum-based gel to the inside of the nostrils (Choice D) is unrelated to oxygen therapy safety and is not recommended.

Correct Answer: C

Rationale: The correct answer is C. Keeping a diary of albuterol use helps monitor the frequency and severity of asthma symptoms, which can guide the healthcare provider in adjusting treatment as needed. Option A is incorrect because fluticasone is a controller medication used for long-term management, not for treating acute asthma attacks. Option B is incorrect as using a peak flow meter once a week may not provide real-time information on asthma control. Option D is incorrect as limiting fluid intake does not directly prevent mucus production in asthma.

Correct Answer: B

Rationale: Bacterial vaginosis often presents with a profuse, milky white discharge and a characteristic fishy odor, without significant inflammation, hematuria, or fever. Choice A, frequency, and dysuria are more indicative of a urinary tract infection. Choice C, hematuria, is associated with conditions like urinary tract infections or kidney problems. Choice D, low-grade fever, is not a typical symptom of bacterial vaginosis.

Correct Answer: C

Rationale: The correct action the nurse should take when administering enoxaparin is to inject the medication in the abdomen subcutaneously. This route ensures proper absorption of the medication. Aspiration is not necessary before injecting enoxaparin as it is a subcutaneous injection, not an intramuscular injection. Massaging the site after injecting should be avoided to prevent bruising. Enoxaparin injections are typically given at a 45 to 90-degree angle, not necessarily at a strict 90-degree angle.

Correct Answer: A

Rationale: The correct answer is to instruct the client to avoid sitting in a chair for prolonged periods. This is important to prevent contractures from developing in the residual limb. Sleeping with a pillow under the residual limb can contribute to contracture formation rather than prevent it. While elevation of the limb is important for reducing swelling and promoting circulation, continuous elevation for 48 hours is not necessary and may not be practical. Applying lotion to the residual limb daily is generally not recommended immediately post-amputation as the wound site needs to heal without interference from lotions or creams.