Correct Answer: B

Rationale: The correct answer is B: Have the client wear sequential compression devices (SCDs). Following a cholecystectomy, the client is at risk for venous thromboembolism (VTE) due to reduced mobility and surgical stress. SCDs help prevent VTE by promoting venous return and reducing the risk of blood clots. Choices A, C, and D are incorrect. While deep breathing and coughing exercises are essential postoperatively, SCDs take precedence in preventing VTE. Placing the client in a supine position with the head of the bed flat can increase the risk of respiratory complications. Encouraging ambulation is important, but SCDs are a higher priority in this situation to prevent VTE.

Correct Answer: A

Rationale: Administering analgesics as prescribed is the appropriate intervention for managing perineal pain in a postpartum client. Analgesics help to alleviate discomfort and promote the client's recovery. Applying a warm compress (choice B) may provide some relief, but it does not address the pain as effectively as analgesics. Encouraging ambulation (choice C) and positioning the client with the head elevated (choice D) are not directly related to addressing perineal pain.

Correct Answer: B

Rationale: The correct answer is B. Client-reported improvement in anxiety is an indication of effective treatment for pulmonary embolism. Choice A is incorrect as increased density in all lung fields on a chest x-ray may indicate complications or lack of improvement. Choice C is incorrect as diminished breath sounds auscultated unilaterally may suggest a localized lung issue and not necessarily reflect the effectiveness of treatment for a pulmonary embolism. Choice D is incorrect as the ABG results provided do not specifically indicate the effectiveness of treatment for a pulmonary embolism.

Correct Answer: A

Rationale: The correct intervention for preventing pressure ulcers in a client at risk is to turn the client every 2 hours. This helps relieve pressure on bony prominences, improving circulation and preventing tissue damage. Using a donut-shaped cushion can actually increase pressure on the skin and worsen the risk of pressure ulcers. Elevating the head of the bed to 45 degrees is beneficial for preventing aspiration in some cases but does not directly address pressure ulcer prevention. Massaging reddened areas can further damage the skin and increase the risk of pressure ulcer development by causing friction and shearing forces.

Correct Answer: A

Rationale: Corrected Rationale: A persistent cough is a known adverse effect of enalapril, an ACE inhibitor. Enalapril can cause the accumulation of bradykinin, leading to a dry, persistent cough in some patients. Dry mouth (choice B) and urinary retention (choice C) are not typically associated with enalapril use. Insomnia (choice D) is also not a common adverse effect of enalapril. Therefore, the correct answer is A.