Correct Answer: C

Rationale: In clients with congestive heart failure (CHF), impaired cardiac function can lead to decreased renal perfusion, resulting in elevated serum creatinine levels. Therefore, an increased serum creatinine level is a common laboratory finding in CHF clients, indicating possible renal impairment.

Correct Answer: A

Rationale: The correct answer is A. Recording symptoms that occur with activity is crucial when wearing a Holter monitor. This information helps in correlating symptoms with cardiac events, aiding in the diagnosis and treatment of the client's condition. The client's understanding of this aspect demonstrates comprehension of the procedure and its purpose.

Correct Answer: C

Rationale: Monitoring blood glucose levels regularly is crucial for clients with type 2 diabetes who are taking metformin. This helps assess the effectiveness of the medication in managing blood sugar levels and allows for timely adjustments in the treatment plan if needed. By monitoring blood glucose levels, the client and healthcare team can work together to achieve optimal diabetes control and prevent complications associated with uncontrolled blood sugar levels.

Correct Answer: B

Rationale: Limiting caffeine and alcohol consumption is recommended to help reduce the frequency of hot flashes in post-menopausal individuals. Caffeine and alcohol can trigger hot flashes and worsen their occurrence. Encouraging the client to reduce these stimulants in their diet may help alleviate hot flashes and improve their quality of life.

Correct Answer: C

Rationale: In clients with congestive heart failure (CHF), impaired cardiac function can lead to decreased renal perfusion, resulting in elevated serum creatinine levels. Therefore, an increased serum creatinine level is a common laboratory finding in CHF clients, indicating possible renal impairment.