Description of test Remain as still as possible during the procedure, except when following instructions to change position. Cooperate in assuming various positions because films must be taken as quickly as possible. The anesthetic is administered. The procedure does not begin until you are numb. Needle is placed into joint space.
Fluoroscopic exam confirms correct location of the needle.
Fluid from the joint space is collected for study. Dye is injected into the joint space. You may experience a tingling sensation or pressure in the joint when dye is injected. Move the joint when directed to disburse dye throughout the joint. X-rays are taken.