Final answer:
During a rheumatoid arthritis flare-up, the most suitable exercises are those that are low-impact and involve gentle movements. Making fists, then opening hands and fingers, is a good example of such an exercise, which helps maintain joint flexibility without excessive strain. Complete rest is not recommended as it can lead to increased stiffness and muscle weakness.
Step-by-step explanation:
In the case of a client with rheumatoid arthritis (RA) experiencing a flare-up with reduced movement in affected joints, exercising can still be important for maintaining joint flexibility and muscle strength. However, it is crucial that these exercises are low-impact and gentle to not exacerbate the condition. The most appropriate exercises during such a flare would be low-impact activities that involve gentle movements and minimal stress on the joints.
Thus, option 2) Make fists, then open hands and fingers would be the most suitable exercise for a client to complete during an RA flare. Such range-of-motion exercises can help keep the joints flexible without putting too much strain on them. On the other hand, options 3) Sewing and mending for a prolonged time and 4) Theraputty exercises to improve strength may be too intensive during a flare and may lead to increased joint stress and pain. Rest, as mentioned in option 1), is also vital; however, complete avoidance of physical activity is not recommended as it may lead to joint stiffness and muscle weakness over time.