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7 Cards in this Set

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A procedure is done to obtain synovial fluid from a joint for diagnosis or remove excess fluid. A needle is inserted through the joint capsule and fluid is aspirated.
Arthrocentesis
Related nursing interventions:
After procedure, apply compression dressing and tell pt to report any bleeding and leakage.
An endoscopic examination of interior surfaces of a joint, arthroscopy is used to perform surgery and diagnose diseases of the patella, meniscus, and synovial and extrasynovial membranes. An arthrography is performed prior to this.
Arthroscopy
Related nursing interventions:
Following procedure, assess for bleeding and swelling, apply ice to area if prescribed, and instruct pt to avoid excessive use of the joint for 2-3 days.
The degree of uptake of a radioisotope is measured w/ a Geiger counter and recorded on paper.
Bone Scan
Tell pt to increase oral fluids after test to aid in excretion of the radioisotope.
Provides a 3-dimensional picture used to evaluate musculoskeletal trauma and bony abnormalities. Scans long bones, joints, and spine.
Computed Tomography (CT)
See chart on pg.1294
Measures the electrical activity of skeletal muscles at rest and during contraction.
Needle electrodes are inserted into skeletal muscle and electrical activity can be heard, viewed on an oscilloscope, and recorded on graph paper.
Electromyogram (EMG)
Instruct pt not to drink flluids containing caffeine or smoke for 3 hrs before teh test, and not to take medications such as muscle relaxants, anticholinergics, or cholinergics.
Used in diagnosis an evaluation of avascuar necrosis, osteomyelitis, tumors, disk abnormalities, and tears in ligament or cartilage. It uses radio waves and magnetic fields; gadolinium may be injected to increase visualization of bony or muscular structures.
MRI
See chart on pg. 1295 for related nursing interventions.
Measures nerve conduction along pathways to evaluate evoked poential of muscle contractions.
Used to identify dysfunction of lower motor neurons as well as muscle disease.
Somatosensory evoked potential (SSEP)