Final answer:
A synovial fluid analysis is performed to rule out inflammatory arthritis and gout in a client with possible osteoarthritis, helping to differentiate between types of arthritis and assess the joint's health.
Step-by-step explanation:
The client with possible osteoarthritis is scheduled for a synovial fluid analysis primarily for the reason of rule out inflammatory arthritis and gout. This diagnostic test is critical in differentiating between various types of arthritis, such as rheumatoid arthritis (RA) — an autoimmune disease, and other inflammatory conditions. Unlike imaging techniques such as X-rays or arthrography, which show physical abnormalities in the joint, a synovial fluid analysis can detect biological markers of inflammation and crystals indicative of gout, thereby helping to confirm or rule out these conditions. Furthermore, the analysis assists in assessing the overall health of the joint environment, which can be indicative of osteoarthritis progression.