Final answer:
The classification of the client's rheumatoid arthritis should be documented as Class IV, which represents severe disease with a high level of disability and significant limitation of joint function.
Step-by-step explanation:
The classification of the client's rheumatoid arthritis should be documented as Class IV.
Rheumatoid arthritis (RA) is classified into four stages or classes based on the severity of the disease and the impact on daily activities. Class IV refers to severe disease with a high level of disability and significant limitation of joint function.
In Class IV, the disease affects multiple joints and often involves systemic symptoms such as fatigue, weight loss, and fever. The joints may be severely swollen, tender, and deformed, and there may be signs of joint destruction visible on imaging tests.