Correct Answer: C

Rationale: Placing the client's arm in a dependent position is the correct action when preparing to insert an IV catheter in an older adult client. This position helps dilate the veins naturally by using gravity, making it easier to locate and access suitable veins for the IV catheter insertion. By positioning the arm in a dependent position, the healthcare professional can take advantage of gravity to increase venous distention, aiding in successful IV catheter insertion.

Correct Answer: A

Rationale: The correct answer is A because shaking the inhaler before each use ensures that the medication is properly mixed, which is essential for effective administration. This action helps to disperse the medication evenly, enhancing its efficacy when inhaled. Proper mixing through shaking prevents inconsistent dosing and ensures that the client receives the correct amount of medication with each use.

Correct Answer: D

Rationale: The correct intervention for a client with a pressure ulcer is to use a transparent film dressing. This dressing provides a protective barrier against external contaminants while allowing for wound inspection, promoting healing. Massaging the reddened area can cause further damage to the skin and should be avoided. Donut-shaped cushions can increase pressure on the ulcer site rather than alleviate it. Repositioning the client every 2 hours is a preventive measure for pressure ulcers, but once an ulcer has developed, using a transparent film dressing is a more appropriate intervention to facilitate healing and protect the wound site.

Correct Answer: B

Rationale: Keeping the bed in the lowest position is crucial for ensuring the safety of the client during a seizure. Lowering the bed reduces the risk of injury if the client falls during a seizure episode. It is important not to restrain the client during a seizure as it can lead to further injury. Placing a padded tongue depressor at the bedside is not appropriate and can pose a risk of injury if used incorrectly. Keeping the lights dim in the client's room is not directly related to safety during a seizure and is not a standard precaution.

Correct Answer: C

Rationale: The correct instruction to include when educating a client prescribed enoxaparin is to inject the medication once daily. Enoxaparin is typically administered via subcutaneous injection once daily, usually in the abdomen, to prevent blood clots.