Correct Answer: D

Rationale: The correct answer is to monitor the client's respiratory rate. When a client is receiving opioids, the priority assessment is the respiratory rate since opioids can lead to respiratory depression. Monitoring urinary output, blood pressure, and constipation are also important but not the priority in this scenario.

Correct Answer: A

Rationale: The correct initial nursing action for a patient presenting with chest pain is to administer aspirin. Aspirin helps reduce the risk of further clot formation in patients experiencing chest pain, as it has antiplatelet effects. Repositioning the patient, providing pain relief, or preparing for surgery are not the first-line interventions for chest pain. Repositioning the patient may be necessary to ensure comfort and safety, pain relief can be provided after further assessment and diagnostic tests, and preparing for surgery would only be considered after a thorough evaluation and confirmation of the need for surgical intervention.

Correct Answer: A

Rationale: The correct answer is A: Hypokalemia. Furosemide, a loop diuretic, commonly causes the loss of potassium in the urine, leading to hypokalemia. This electrolyte imbalance can result in various complications such as cardiac arrhythmias and muscle weakness. Choice B, Hyponatremia, is not typically associated with furosemide use. Choice C, Hyperkalemia, is the opposite of the expected electrolyte imbalance caused by furosemide. Choice D, Hypercalcemia, is not a common side effect of furosemide.

Correct Answer: A

Rationale: The correct answer is A. A heart rate of 58/min is indicative of bradycardia, a potential sign of digoxin toxicity, which should be reported immediately. While weight gain, respiratory rate, and temperature are important parameters to monitor, they are not as critical as identifying bradycardia in a client taking digoxin.

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.