Correct Answer: B

Rationale: When admitting a client with meningococcal meningitis, the nurse's priority should be to place the client on droplet precautions. This is crucial to prevent the spread of the infection to others. Administering antibiotics, performing a lumbar puncture, and initiating seizure precautions are important interventions but should come after implementing droplet precautions to ensure the safety of both the client and others.

Correct Answer: C

Rationale: The correct answer is to reposition the client every 4 hours. Repositioning the client helps prevent pressure injuries caused by urinary incontinence by relieving pressure on vulnerable areas of the skin. Choice A, using a heating pad for comfort, is not directly related to preventing pressure injuries. Choice B, applying a barrier cream to the skin, may help protect the skin but does not address the underlying cause of pressure injuries. Choice D, changing the client's position every 2 hours, is more frequent than necessary and may not be as effective in preventing pressure injuries as repositioning every 4 hours.

Correct Answer: C

Rationale: The correct instruction for a client using a metered-dose inhaler (MDI) is to hold the inhaler 1-2 inches from the mouth. This distance allows for the proper delivery of the medication into the lungs. Choice A is incorrect because the duration of inhalation can vary depending on the medication, and 1 second may not be adequate. Choice B is incorrect as shaking the inhaler vigorously is not necessary for all MDIs and can lead to inaccurate dosing. Choice D is incorrect as the client should hold their breath for about 10 seconds after inhalation to allow the medication to deposit in the lungs.

Correct Answer: C

Rationale: The correct answer is the use of a special mattress. Special mattresses are designed to reduce pressure on bony prominences, thereby helping to prevent pressure injuries. Frequent repositioning (Choice A) is actually a preventive measure for pressure injuries. Poor nutrition (Choice B) can contribute to delayed wound healing but is not a direct risk factor for pressure injuries. Urinary incontinence (Choice D) can increase the risk of skin breakdown but is not a direct risk factor for pressure injuries.

Correct Answer: B

Rationale: When a client presents with symptoms of phlebitis at the IV site, such as redness, warmth, and pain, it is essential to discontinue the IV line. Increasing the IV flow rate could exacerbate the condition by further irritating the vein. Applying a cold compress may provide temporary relief but does not address the underlying issue of phlebitis. Elevating the limb is not the primary intervention for phlebitis and discontinuing the IV line takes precedence to prevent complications.