5‐HIAA, Plasma
Test Mnemonic
5HIAAD
CPT Codes
- 83497 - QTY (1)
Includes
- 5-HIAA, Plasma
Performing Laboratory
LabCorp
Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 1 mL | Plasma | Sodium heparin (Green) | Frozen | Separate plasma from cells within 45 minutes of collection and freeze aliquot. Patient should avoid bananas, avocados, plums, eggplant, tomatoes, plantain, pineapple, walnuts, and interfering drugs for at least 72 hours prior to collection. Separate specimens must be submitted when multiple tests are ordered. |
Alternate Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 1 mL | Plasma | EDTA (Lavender) | Frozen | Separate plasma from cells within 45 minutes of collection and freeze aliquot. Patient should avoid bananas, avocados, plums, eggplant, tomatoes, plantain, pineapple, walnuts, and interfering drugs for at least 72 hours prior to collection. Separate specimens must be submitted when multiple tests are ordered. |
Minimum Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 0.5 mL |
Stability
| Environmental Condition | Description |
|---|---|
| Frozen | After separation from cells: 14 days (6 freeze/thaw cycles) |
| Refrigerated | After separation from cells: 3 days |
| Ambient | After separation from cells: 3 days |
Days Performed
Varies
Turnaround Time
9 - 16 days
Methodology
| Name | Description |
|---|---|
| High-Pressure Liquid Chromatography (HPLC)/Tandem Mass Spectrometry |
Special Info
Separate plasma from cells within 45 minutes of collection and freeze aliquot. Patient should avoid bananas, avocados, plums, eggplant, tomatoes, plantain, pineapple, walnuts, and interfering drugs for at least 72 hours prior to collection. Separate specimens must be submitted when multiple tests are ordered. Grossly hemolyzed specimens will be rejected.
Clinical Info
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.