A 44-year-old patient who has been seen in the clinic for arthritis is about to undergo a procedure to retrieve synovial fluid from her knee to decrease the pain. The nurse knows that which of the following procedures will be involved?
A) Angiography
B) Myelography
C) Paracentesis
D) Arthrocentesis
Ans: D
Feedback: Arthrocentesis (needle aspiration of synovial fluid) may be performed not only to obtain a sample of synovial fluid for analysis, but also to relieve pain caused by the pressure of increased fluid volume, usually in the knee or shoulder. Angiography is an x-ray study of circulation with a contrast agent injected into a selected artery. Myelography is an x-ray of the spinal subarachnoid space taken after the injection of a contrast agent into the spinal subarachnoid space through a lumbar puncture. Paracentesis is removal of fluid (ascites) from the peritoneal cavity through a small surgical incision or puncture made through the abdomen under sterile conditions
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