Arthritis is a disease that causes pain in the joints. Corticosteroids are given to decrease the pain of the arthritis in joints. Which method of injection would most likely be used to administer corticosteroids?

Corticosteroids can be injected directly into an affected joint to reduce inflammation and pain. An injection into a joint is called intra-articular, so the correct choice is intra-articular. Intravenous means into a vein, intracardiac means into the heart, and intrathecal means into the space around the spinal cord.

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