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.

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 action when digitally evacuating a fecal impaction is to insert a lubricated gloved finger and advance along the rectal wall. This technique helps prevent trauma and effectively dislodge the impacted stool. Choice B, applying lubricant and stimulating peristalsis, is incorrect as it does not directly address the evacuation of the impacted stool. Choice C, applying pressure to the abdomen, is inappropriate and may cause discomfort or harm to the client. Choice D, increasing fluid intake before the procedure, is not directly related to the immediate evacuation of the fecal impaction.

Correct Answer: C

Rationale: The correct answer is C because clients taking metformin should avoid alcohol as it increases the risk of lactic acidosis. Choices A, B, and D are incorrect. Choice A is not specific to metformin but rather a general recommendation for some medications. Choice B is a good practice for medication adherence but does not relate specifically to metformin. Choice D is inaccurate as weight gain is not an expected side effect of metformin.

Correct Answer: B

Rationale: When caring for a patient with a central line, monitoring for infection is crucial. This is because central lines can introduce bacteria into the bloodstream, leading to serious infections. While flushing the line daily and changing the dressing weekly are important aspects of central line care, monitoring for infection takes precedence. Infections can occur rapidly and have severe consequences, so early detection through vigilant monitoring is key. Replacing the central line every week is not a standard practice and should only be done when clinically indicated, such as in cases of infection or malfunction.