8 - 15 days
Turnaround time is defined as the usual number of days from the date of pickup of a specimen for testing to when the result is released to the ordering provider. In some cases, additional time should be allowed for additional confirmatory or additional reflex tests. Testing schedules may vary.
Plasma, frozen
1.0 mL
0.5 mL
Green-top (heparin) tube or lavender-top (EDTA) tube
Freeze
Temperature | Period |
---|---|
Room temperature | 3 days |
Refrigerated | 3 days |
Frozen | 14 days |
Freeze/thaw cycles | Stable x6 |
Avoid bananas, avocados, plums, eggplant, tomatoes, plantain, pineapple, walnuts, and interfering drugs for a 72-hour period prior to and during collection.
Gross hemolysis
Plasma 5-hydroxy-indoleacetic acid (5HIAA or 5-HIAA) is a metabolite of serotonin that can be elevated as a result of carcinoid tumors/carcinoid syndrome.
This test was developed and its performance characteristics determined by LabCorp. It has not been cleared or approved by the Food and Drug Administration.
High-pressure liquid chromatography (HPLC)/tandem mass spectrometry
Order Code | Order Code Name | Order Loinc | Result Code | Result Code Name | UofM | Result LOINC |
---|---|---|---|---|---|---|
504510 | 5-HIAA, Plasma | 1693-1 | 504511 | 5-HIAA, Plasma | ng/mL | 1693-1 |
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