5-hydroxyindoleacetic acid
19 days
High-pressure liquid chromatography (HPLC)/tandem mass spectrometry
Causes for Rejection: Gross Haemolysis. Patient Preparation: Avoid bananas, avocados, plums, eggplant, tomatoes, plantain, pineapple, walnuts, and interfering drugs for a 72-hour period prior to and during collection.
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General test name for 5-hydroxyindoleacetic acid measurement. Screens for serotonin-producing carcinoid tumors.
Plasma
1 mL
Green-top (heparin) tube or lavender-top (EDTA) tube
No special preparation is required for this test. You may eat, drink, and take your medications as normal, unless instructed otherwise by your healthcare provider.
Strictly frozen, requires own sample container
| Temperature | Period |
|---|---|
| Frozen | 14 days |
| Freeze/thaw cycles | Stable x3 |