Tests & Procedures

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Salicylate (Blood)
This test looks for high levels of salicylate, the main ingredient in aspirin. It may be used to diagnose an aspirin overdose or to monitor people taking high doses for arthritis.
Salmonella Culture (Stool)
This test looks for salmonella bacteria in your stool. Having these bacteria in your stool means you have a salmonella infection.
Semen Analysis
This is a series of tests that looks at how healthy your semen and sperm are.
This test is sometimes used to help diagnose carcinoid syndrome, a problem that can occur in people with carcinoid tumors.
Sex Hormone Binding Globulin (Blood)
This test measures the level of SHBG in your blood. It can help find out whether you have abnormal testosterone levels.
A sigmoidoscopy is a procedure that allows the physician to examine the lower one-third of the large intestine and is helpful in identifying the causes of diarrhea, abdominal pain, constipation, abnormal growths, and bleeding.
Signal-Averaged Electrocardiogram
During this procedure, the electrical activity of the heart is monitored over a period of several minutes in order to capture abnormal heartbeats which may occur only intermittently.
Sinus X-ray
A sinus x-ray is a type of x-ray used to obtain images of the sinuses - the air-filled cavities lined with mucous membranes located within the bones of the skull.
Sjogren's Antibody (Blood)
This test checks for antibodies that are a sign of Sjögren's syndrome, an autoimmune disease that makes it hard for your glands to produce enough moisture.
Skull Base Surgery
Skull base surgery may be done to remove both benign and cancerous growths, and abnormalities on the underside of the brain, the skull base, or the top few vertebrae of the spinal column.