Definition: This is a example that measures the amount of 5-HIAA in urine.

Definition: This is a example that measures the amount of 5-HIAA in urine.
Alternative Names: HIAA; 5-hydroxyindole acetic acid; Serotonin metabolite
How the proof is performed: The health care provider will instruct you, if necessary, to discontinue remedys that may interfere with the touchstone A 24-hour urine sample is needed:
On day 1 urinate into the toilet on the subject of arising in the morning.Collect all following urine (in a special container) for the nearest 24-hours.On day 2, urinate into the container in the morning on arising.Cap the container. Keep it in the refrigerator or a moderately cold place during the collection period. Label the container with your name, the date, the time of completion, and reply it as instructed.

For a infant, thoroughly wash the area around the urethra. expand a urine collection bag (a plastic bag with an adhesive paper forward one end), and place it in succession your infant. For boys, the entire penis can be placed in the bag and the adhesive attached to the skin. For girls, the bag is placed above the labia. Place a diaper from one side of to the other the infant (bag and all). The infant should be checked not seldom and the bag changed after the infant has urinated into the bag. For active infants, this manner of proceeding may take a couple of attempts -- lively infants can displace the bag, causing an inability to obtain the specimen. The urine is drained into the container for transport to the laboratory.

Deliver it to the laboratory or your health care provider as early as possible upon completion. The lab analyzes the sample for the amount of 5-HIAA.

How to prepare for the test: The health care provider will instruct you, if necessary, to discontinue mix with drugss that may interfere with the exhibition Refrain from eating foods that contain interfering substances for 3 days before the ordeal (see Special Considerations.)
How the experiment will feel: The test involves and nothing else normal urination, and there is no discomfort.
Why the trial is performed: This test is performed to evaluate the amount of 5-HIAA excret by the agency of the body.

Serotonin is synthesized from the amino acid tryptophan by the agency of hormone-producing enterochromaffin cells in the paunch and bronchi (airways of the lung) Serotonin increases dilation of family vessels and platelet aggregation (clumping of platelets). It is metabolized in the liver to 5-HIAA and eventually periods up in the urine.

Normal Values: The normal range is 3 to 15 mg/24 hr (milligrams by 24 hours)
What abnormal issues mean: 5-HIAA levels are usually measured to ascertain carcinoid tumors and follow the clinical course of patients, and to diagnose certain medical conditions similar as systemic mastocytosis and endocrine tumors.
What the risks are: There are no risks.
Special considerations: unsalable articles that can increase 5-HIAA measurements include acetanilid, phenacetin, glyceryl guaiacolate (found in many cough syrups) methocarbamol, and reserpine.

put drugs intos that can decrease 5-HIAA measurements include chlorpromazine, heparin, imipramine, isoniazid, levodopa, monoamine oxidase inhibitors, methenamine, methyldopa, phenothiazines, promethazine, and tricyclic antidepressants.

cheers that can interfere with 5-HIAA measurements include plum-trees pineapples, bananas, eggplant, tomatoes, avocados, and walnuts. Do not eat them for 3 days before the test

...

Home