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final-review 29

E & D 3 diagnostic tests

Arteriography refers to a radiograph that visualizes injected radiopaque dye in an artery. The test can be used to identify arteriosclerosis, tumors or blockages.
Arthrography is an invasive test utilizing a contrast medium to provide visualization of joint structures through radiographs.
Arthrography Soft tissue disruption can be identified by leakage from the joint cavity and capsule. Arthrography The test is commonly used at peripheral joints such as the hip, knee, ankle, elbow, and wrist.
A bone scan is an invasive test that utilizes isotopes to identify stress fractures, infection, and tumors. Bone scans can identify bone disease or stress fractures with as little as 4-7% bone loss.
Computed tomography produces cross-sectional images based on x-ray attenuation. A computerized analysis of the changes in absorption produces a detailed reconstructed image.
Computed tomography The test is commonly used to diagnose spinal lesions and in diagnostic studies of the brain.
Doppler ultrasonography is a . non-invasive test that evaluates blood flow in the major veins, arteries, and cerebrovascular system
Doppler ultrasonography The test relies on the transmission and reflection of high frequency sound waves to produce cross-sectional images in a variety of planes.
Doppler ultrasonography is safer, less expensive, and requires a shorter time period than more invasive tests such as arteriography and venography.
Electrocardiography is the recording of the electrical activity of the heart.
Electrocardiography The test identifies three distinct waveforms: P wave (atrial depolarization), QRS complex (ventricular depolarization), and the T wave (ventricular repolarization). Electrocardiography is used to help identify conduction abnormalities, cardiac arrhythmias, and myocardial ischemia.
Electromyography is the recording of the electrical activity of a selected muscle or muscle groups at rest and during voluntary contraction.
Electromyography is performed by inserting a needle electrode percutaneously into a muscle or through the use of surface electrodes.
Electromyography The test is commonly used to assess peripheral nerve injuries and to differentiate between various neuromuscular disorders.
Fluoroscopy is designed to show motion in joints through x-ray imaging.
Fluoroscopy The technique permits objects placed between a fluorescent screen and a roentgen tube to become visible. Fluoroscopy is not used commonly due to excessive radiation exposure.
Magnetic resonance imaging is a non-invasive technique that utilizes magnetic fields to produce an image of bone and soft tissue.
Magnetic resonance imaging The test is valuable in providing images of soft tissue structures such as muscles, menisci, ligaments, tumors, and internal organs.
Magnetic resonance imaging requires the patient to remain still for prolonged periods of time and is extremely expensive.
Myelography is an invasive test that combines fluoroscopy and radiography to evaluate the spinal subarachnoid space.
Myelography The test utilizes a contrast medium that is injected into the epidural space by spinal puncture. Myelography is used to identify bone displacement, disk herniation, spinal cord compression or tumors.
Venography refers to a radiograph that visualizes injected radiopaque dye in a vein. The test can be used to identify tumors or blockages in the venous network.
X-ray is a radiographic photograph commonly used to . assist with the diagnosis of musculoskeletal problems such as fractures, dislocations, and bone loss
X-ray produces planar images and as a result often requires images to be taken in multiple planes in order to visualize a lesionʼs location and size.
Created by: micah10
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