Correct Answer: A

Rationale: The correct action to prevent aspiration in a client with a nasogastric tube is to elevate the head of the bed to 45 degrees during feedings. This positioning helps reduce the risk of regurgitation and aspiration of gastric contents. Placing the client in the left lateral position after feedings does not directly prevent aspiration. Flushing the tube with sterile water before each feeding is important for tube patency but does not specifically prevent aspiration. Checking gastric residuals every 8 hours is necessary to monitor the client's tolerance to feedings but is not a direct preventive measure against aspiration.

Correct Answer: D

Rationale: The correct answer is D: Apply sequential compression devices to the client's legs. Sequential compression devices help prevent venous stasis and reduce the risk of DVT by promoting blood flow in the legs. Massaging the client's legs every 2 hours (choice A) may dislodge a clot if present, leading to a higher risk of embolism. Instructing the client to sit with the legs crossed (choice B) can impede blood flow and increase the risk of DVT. Administering prophylactic antibiotics (choice C) is not indicated for preventing DVT, as antibiotics are used to treat infections caused by bacteria, not to prevent blood clots.

Correct Answer: D

Rationale: The correct answer is D because a blood glucose level of 120 mg/dL falls within the normal range. A low serum albumin level, as mentioned in choice B, should be reported as it may indicate malnutrition. Choices A and C are within normal ranges and would not typically require immediate reporting.

Correct Answer: C

Rationale: The correct answer is C. A serum creatinine level of 2.8 mg/dL indicates impaired kidney function and should be reported to the healthcare provider. Elevated serum creatinine levels are indicative of decreased kidney function and potential progression of chronic kidney disease. Choices A, B, and D are within normal ranges and do not signify immediate concerns related to kidney disease. Urine output of 80 mL/hr is appropriate, a blood pressure of 140/90 mm Hg is considered prehypertensive but not acutely concerning, and a heart rate of 72/min falls within the normal range.

Correct Answer: A

Rationale: Administering oxygen is the best intervention for a patient with respiratory distress because it helps improve oxygenation levels and alleviates respiratory distress directly. Providing oxygen addresses the primary issue of inadequate oxygen supply, which is crucial in managing respiratory distress. Repositioning the patient, while important for airway clearance, may not address the immediate need for oxygen. Providing bronchodilators and humidified air can be beneficial in certain respiratory conditions, but when a patient is in respiratory distress, ensuring adequate oxygenation through oxygen administration takes precedence.