Correct Answer: A

Rationale: Increased oxygen saturation (A) is the most direct indicator of the effectiveness of albuterol (Proventil) in improving breathing. Oxygen saturation reflects the amount of oxygen in the blood, showing that the albuterol is helping with air exchange in the lungs. While decreased respiratory rate (B), absence of audible wheezing (C), and improved exercise tolerance (D) are positive outcomes, they are secondary to oxygen saturation. Oxygen saturation directly reflects the improvement in the client's respiratory status and the effectiveness of the medication.

Correct Answer: D

Rationale: The client's statement that 'This is a new pill I have never taken before' indicates the need for further assessment by the nurse to ensure the medication is correct and safe. Choices A, B, and C do not raise immediate concerns about the medication order; therefore, they are incorrect. Choice A simply provides information about the client's usual medication schedule, choice B is related to the cost of the pills, and choice C expresses fatigue from taking pills, but none of these statements suggest a potential issue with the new medication.

Correct Answer: A

Rationale: When assessing for orthostatic hypotension, the initial step is to position the client supine for a few minutes. This allows the body to adjust to the supine position before assessing blood pressure changes that may indicate orthostatic hypotension. By observing the blood pressure after the client has rested supine, the nurse can accurately assess for any drop in blood pressure upon standing, which is indicative of orthostatic hypotension. Choices B, C, and D are incorrect as they do not address the initial step in assessing for orthostatic hypotension, which is ensuring the client is positioned correctly to detect blood pressure changes upon standing.

Correct Answer: B

Rationale: Anticoagulants increase the risk of bleeding during surgery, which can lead to complications such as excessive bleeding and difficulty in achieving hemostasis. This poses a significant threat during a surgical procedure where controlling bleeding is crucial for a successful outcome. The other options (A, C, D) are not as critical as anticoagulants in terms of posing a threat for complications during surgery. Birth control pills, recently completing antibiotic therapy, and using laxatives do not directly impact bleeding risks during surgery compared to anticoagulants.

Correct Answer: A

Rationale: The correct instruction for the nurse to provide is to advise the client to decrease intake of fluids after the evening meal. By reducing fluid intake before bedtime, the client can minimize the need to void during the night, which can help improve sleep patterns affected by nocturia. Choices B, C, and D are incorrect. Drinking cranberry juice or warm decaffeinated beverage at bedtime may increase fluid intake, exacerbating the nocturia issue. Consulting the healthcare provider about a sleeping pill should not be the first intervention, as it is important to try non-pharmacological approaches first.