Correct Answer: A

Rationale: Monitoring gastric residuals every 4 hours is essential to assess the stomach's ability to empty properly, reducing the risk of aspiration. It helps in determining if the feedings are being tolerated by the client and if adjustments are needed in the feeding regimen. Positioning the client in a semi-Fowler's position helps prevent reflux and aspiration by promoting proper digestion and emptying of the stomach contents. Checking for tube placement by auscultating air after feeding confirms correct tube placement in the stomach. Warming the formula to body temperature before feeding enhances client comfort but does not directly prevent aspiration.

Correct Answer: C

Rationale: Dark-colored urine is a common sign of dehydration as the urine becomes concentrated. Dehydration leads to reduced fluid intake or excessive fluid loss, causing the urine to be darker in color due to increased urine concentration.

Correct Answer: B

Rationale: Placing a sign on the client's door is crucial in alerting healthcare providers to the client's latex allergy, helping them avoid using latex products, which can trigger an allergic reaction. This precaution can prevent accidental exposure and ensure the client's safety during care.

Correct Answer: D

Rationale: Aspirating for blood return before injecting is a crucial step in administering intramuscular injections. This action ensures that the needle is not in a blood vessel, reducing the risk of injecting medication into a blood vessel, which can lead to potential complications.

Correct Answer: D

Rationale: Brown rice is a whole grain that is high in fiber, making it an excellent choice for a high-fiber diet. Foods like white bread, canned fruit, and cheese are typically low in fiber and would not be the best recommendation for a high-fiber diet.