Correct Answer: C

Rationale: The correct answer is C because a urine output of 30 mL/hr indicates oliguria, which can be a sign of dehydration or kidney impairment postoperatively. This finding should be reported to the provider for further evaluation. Choices A, B, and D are within normal parameters for a client who is 2 days postoperative following abdominal surgery and do not raise immediate concerns. Serosanguineous drainage on the dressing is an expected finding in the early postoperative period, a heart rate of 88/min is within the normal range, and a blood pressure of 110/70 mm Hg is also within normal limits.

Correct Answer: A

Rationale: The correct answer is to monitor potassium levels. Patients taking digoxin are at risk of developing toxicity due to hypokalemia. Low potassium levels can potentiate the toxic effects of digoxin on the heart, leading to serious arrhythmias. Monitoring calcium levels (Choice B) is not the primary concern in patients taking digoxin. While calcium levels play a role in cardiac function, hypocalcemia is not directly associated with digoxin toxicity. Monitoring sodium levels (Choice C) is important for other conditions but is not the primary concern in a patient taking digoxin. Monitoring magnesium levels (Choice D) is also essential, but hypomagnesemia is not as directly linked to digoxin toxicity as hypokalemia.

Correct Answer: A

Rationale: The appropriate action when a patient presents with chest pain is to administer aspirin. Aspirin helps reduce the risk of clot formation by inhibiting platelet aggregation, which can be beneficial in cases of myocardial infarction. Nitroglycerin is commonly used for chest pain related to angina but is not the first-line treatment for all types of chest pain. Repositioning the patient may be necessary for comfort or assessment but is not the immediate priority. Surgery is not typically the first-line intervention for chest pain unless there are specific indications.

Correct Answer: B

Rationale: The correct answer is to obtain a 12-lead ECG. In a client with a history of angina and reporting chest pain, the priority action is to assess for myocardial infarction, which is best done through an ECG. Administering oxygen, nitroglycerin, or notifying the provider can be important actions but obtaining an ECG takes precedence in evaluating the client's condition.

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.