Serotonin Level Blood Test
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Test Code: 120204
Specimen Type: Blood
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Description:
Serotonin Level Blood Test
This test measures levels of Serotonin in the blood. Serotonin is a chemical which is mostly found in the platelets in the blood. It serves a number of functions in the body including transmitting impulses between nerve cells, regulating the sleep cycle, constricting blood vessels and affecting a person's mood. Higher than normal levels of Serotonin are often a sign that a person is suffering from Carcinoid Tumors. Carcinoid tumors typically form in the gastrointestinal tract or lungs and can produce excess serotonin. Symptoms of these tumors can include flushing in the face, diarrhea, rapid heart rate and wheezing or difficulty breathing.
A Serotonin blood test is typically ordered when a person has symptoms associated with Carcinoid Tumors. Elevated levels of Serotonin by themselves are not enough to diagnose if a person has the tumors or not. Test results will need to be followed up by more extensive testing as determined by a person's doctor. It is important to note that not all Carcinoid tumors will cause high Serotonin levels.
Due to delays at the lab, the turnaround for this test is typically 3-7 business days.
Where can I find a Serotonin Level Blood test near me?
Check our lab finder to locate a collection site in your area.
Note: Result turn around times are an estimate and are not guaranteed. Our reference lab may need additional time due to weather, holidays, confirmation/repeat testing, or equipment maintenance.
Requirements:
Avoid food high in indoles such as avocado, banana, tomato, plum, walnut, pineapple, and eggplant. Also avoid tobacco, tea and coffee three days prior to specimen collection.
Serotonin levels may be affected by certain types of medications such as morphine, MAO inhibitors, methyldopa, and lithium. It is advisable for a person to check with their prescribing physician to determine if they are taking any medication which may influence their test results.
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