Correct Answer: A

Rationale: Shaking the inhaler before use is crucial to ensure proper mixing of the medication. This action helps distribute the medication evenly, allowing for consistent dosing with each use. It is a vital step in using a metered-dose inhaler correctly to optimize its effectiveness in managing respiratory conditions.

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: C

Rationale: To ensure effective drainage, the catheter should be inserted 2-4 inches into the urethra. This length allows the catheter to reach the bladder, bypass the urethral sphincters, and ensure proper drainage without causing discomfort or injury. Using sterile gloves, cleaning the catheter with alcohol, and performing the procedure every 8 hours are not accurate instructions for self-catheterization.

Correct Answer: A

Rationale: Placing a pillow between the client's legs is crucial post hip arthroplasty surgery to prevent hip dislocation. This intervention helps maintain proper alignment and prevents legs from crossing midline, reducing the risk of hip prosthesis dislocation. Elevating the head of the bed to 45 degrees, positioning the client on the operative side, or keeping the client's legs adducted are not recommended postoperative interventions for a total hip arthroplasty, as they can increase the risk of complications and compromise the surgical site.

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.