Melatonin
Test Mnemonic
MELAT
CPT Codes
- 80375/G0480 - QTY (1)
Aliases
- Melatonin Quantitative, Serum or Plasma
- N-acetyl-5-methoxy-tryptamine
- Sleep hormone
Includes
- Melatonin Quantitative, Serum/ Plasma
Performing Laboratory
ARUP
Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 1 mL | Serum | No additive (Red) | Refrigerated | Separate serum from cells ASAP or within 2 hours of collection and transfer to standard aliquot tube. 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) | Refrigerated | Separate plasma from cells ASAP or within 2 hours of collection and transfer to standard aliquot tube. Separate specimens must be submitted when multiple tests are ordered. |
Minimum Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 0.4 mL |
Stability
| Environmental Condition | Description |
|---|---|
| Ambient | 2 weeks |
| Frozen | 1 year |
| Refrigerated | 1 month |
Days Performed
Varies
Turnaround Time
9 - 12 days
Methodology
| Name | Description |
|---|---|
| High Performance Liquid Chromatography/Tandem Mass Spectrometry (LC/MS/MS) |
Special Info
Gel separator tubes will be rejected. Separate specimens must be submitted when multiple tests are ordered. This test is New York state approved.
Clinical Info
Primarily of use in research studies.