Correct Answer: B

Rationale: When obtaining blood pressure in the lower extremities, the popliteal pulse is the site for auscultation when the blood pressure cuff is applied around the thigh. Auscultating the popliteal pulse with the cuff on the lower leg is incorrect as it may lead to an inaccurate reading. Placing the client in a prone position and wrapping the cuff around the girth of the leg are acceptable practices. A systolic reading that is 20 mm Hg higher in the lower extremity compared to the arm is expected due to the difference in blood pressure between the upper and lower parts of the body.

Correct Answer: B

Rationale: In this situation, the nurse should notify the healthcare provider. The healthcare provider needs to be informed to review the legal documents provided by the patient's daughter, such as the durable power of attorney and living will, which specify the patient's wishes regarding life-saving measures. The healthcare provider will be responsible for making the appropriate decision based on the legal documents and the patient's current condition. Referring to the risk manager (choice A) is not necessary as the issue at hand pertains to the patient's medical care. Discontinuing the ventilator (choice C) without healthcare provider input could go against the patient's wishes and legal documents. Reviewing the medical record (choice D) may not provide immediate guidance on the current situation and the patient's preferences regarding life-saving measures.

Correct Answer: B

Rationale: Administering oxygen via nasal cannula (B) is the priority intervention for a client with COPD exacerbation to improve oxygenation. In COPD exacerbation, there is impaired gas exchange leading to hypoxemia, making oxygen therapy the initial priority. Administering bronchodilators (A) helps with bronchodilation but should come after ensuring adequate oxygenation. Encouraging coughing and deep breathing (C) and positioning the client in high Fowler's position (D) are also beneficial interventions, but the first step is to address the oxygenation needs of the client.

Correct Answer: C

Rationale: Coughing, vomiting, and suctioning can precipitate displacement of the tip of the small-bore feeding tube upward into the esophagus, placing the client at increased risk for aspiration. Checking the sample of fluid withdrawn from the tube (after clearing the tube with 30 ml of air) for acidic (stomach) or alkaline (intestine) values is a more sensitive method for these tubes. The nurse should assess tube placement in this way before taking any other action to ensure the tube is still in the correct position and prevent potential complications. Choice A is incorrect because further assessment is needed due to the risk of tube displacement. Choice B is incorrect as stopping the feeding and involving the family is premature without confirming tube placement. Choice D is incorrect as injecting air and auscultating for gurgling is not the recommended method to confirm tube placement.

Correct Answer: B

Rationale: Acknowledging the client's feelings with empathy is essential in the early stage of adjustment to a colostomy surgery. By saying 'It must be difficult to have this kind of surgery,' the nurse validates the client's emotions and opens up a channel for further communication. Choice A is incorrect because agreeing with the client's denial is not therapeutic and may hinder acceptance. Choice C is inappropriate as it disregards the client's emotional state and autonomy. Choice D involves the surgeon and is not the nurse's role in addressing the client's emotional needs.