Final answer:
The appropriate nursing diagnosis for the patient with CHF who mentioned weighing themselves daily would be Excess Fluid Volume, as this is a common practice to monitor fluid retention.
Step-by-step explanation:
The appropriate nursing diagnosis based on the patient's statement would be Excess Fluid Volume. This diagnosis is appropriate because the patient mentions weighing themselves daily, which is a common practice for individuals with congested heart failure (CHF) to monitor fluid retention. Excess Fluid Volume is a nursing diagnosis used to describe an excessive accumulation of fluid in the body, which is a common complication of CHF.