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Not sure what that test your doctor ordered is or what the results mean? Learn
the difference between an MRI and a CT scan in Healthline’s guide to
diagnostic tests.
Featured Diagnostic Tests
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Cord blood is a sample of blood collected from the umbilical cord at the time of birth.
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A computed tomography (CT) scan is an imaging method that uses x-rays to create cross-sectional pictures of the body. See also: Cranial CT scan; Lumbosacral spine CT scan; Orbit CT scan; Thoracic CT scan.
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An exercise stress test is a screening tool to test the effect of exercise on your heart. It provides an overall look at the health of your heart. See also: Stress echocardiography; Thallium stress test.
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Magnetic resonance imaging (MRI) is a noninvasive way to take pictures of the body. Unlike x-rays and computed tomographic (CT) scans, which use radiation, MRI uses powerful magnets and radio waves. The MRI scanner contains the magnet. The magneti...
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A Pap smear is an examination under the microscope of cells scraped from the cervix.
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A throat culture is a technique for identifying disease bacteria in material taken from the throat. Most throat cultures are done to rule out infections caused by beta-hemolytic streptococci, which cause strep throat . Hemolytic means that these s...
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Ultrasound involves the use of high-frequency sound waves to create images of organs and systems within the body.
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