Which medication should the nurse anticipate for a client newly diagnosed with rheumatoid arthritis?

Methotrexate is a commonly prescribed medication for patients newly diagnosed with rheumatoid arthritis (RA) because it is a disease-modifying antirheumatic drug (DMARD) that helps manage the symptoms and progression of the disease. Methotrexate works by suppressing the immune system and reducing inflammation, which are central issues in RA. It can slow down the damage to joints and help maintain joint function over time, making it an essential part of the treatment plan for RA.

This medication is more effective for long-term management of the disease compared to other options listed. While calcitonin and glucosamine are used for different types of joint and bone issues, they do not address the underlying inflammatory processes characteristic of RA. Allopurinol is primarily used for managing gout and hyperuricemia rather than rheumatoid arthritis. Thus, methotrexate stands out as the most appropriate choice for someone newly diagnosed with RA.