High Performance Liquid Chromatography (HPLC)
Carcinoid Screen; 5-HIAA; Serotonin 5-HIAA
Quest Diagnostics San Juan Capistrano
Other Reference Test
5-10 mL Random Urine
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.
Room Temp: 7 Days; Refrigerated: 30 Days; Frozen: 30 Days
10 mL Random Urine
5 mL Random Urine
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.