Methodology
High Performance Liquid Chromatography (HPLC)
Synonyms
Carcinoid Screen; 5-HIAA; Serotonin 5-HIAA
Specimen Type
Urine, Random
Performing Lab
Quest Diagnostics San Juan Capistrano
Epic ID
Other Reference Test
Lab Test Days
Monday-Friday
Standard TAT
2 Days
Collection Information
Specimen Required
5-10 mL Random Urine
Container Type
Sterile Container
Collection Instructions
Patient should avoid food high in indoles: avocado, banana, tomato, plum, walnut, pineapple and eggplant. Patient should also avoid tobacco, tea and coffee three days before specimen collection.
Processing Information - Lab Use Only
Transport Temperature
Refrigerate-OK/Frozen-OK/Ambient-OK
Specimen Stability
Room Temp: 7 Days; Refrigerated: 30 Days; Frozen: 30 Days
Test Volume Required
10 mL Random Urine
Minimum Test Volume
5 mL Random Urine
Processing Instructions
After urine collection, add 6N HCl to maintain a pH below 3. Urine without preservative is acceptable if pH is below 6 and the sample is sent frozen.
Included Tests
Creatinine
CPT Codes
82570, 83497