Synovial fluid cell count1/22/2024 Slightly cloudy fluid may be caused by inflammation, gout, or pseudogout. No bacteria are seen, and no organisms grow in the culture.īacteria are seen, or organisms grow in the culture. Large numbers of red or white blood cellsĬrystals (seen under a special microscope with polarized light) No large numbers of red or white blood cells The results from a culture usually take a few days. The results of a joint fluid analysis are usually ready the same day. An elastic bandage may also be wrapped around your joint, such as your knee, to reduce swelling. It can help keep fluid from building up again.Ī tight (pressure) bandage will be placed over the site to reduce swelling and bruising. A cortisone shot may be given into the joint before the needle is removed. Samples of the fluid may be put in special tubes or containers and sent to the lab. A syringe attached to the needle is used to remove a sample of joint fluid. For young children, a sedative may also be given.Ī long, thin needle is slowly inserted in the joint area. A local anesthetic is often injected into the skin over the joint. The skin over the joint area will be cleaned with antiseptic solution. Your doctor may use ultrasound to guide the needle placement. Your doctor will examine the joint to find out where the needle should be inserted. You will sit or lie down on an examining table. Depending on which joint will be examined, you may be asked to undress and put on a hospital gown. Joint fluid analysis can be done in your doctor's office, clinic, operating room, or emergency room.
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