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HelpTest Code FMELA Melatonin, Plasma
Specimen Required
***Must submit one specimen per order. Specimens cannot be shared between multiple orders.***
Specimen Type: Plasma
Collection Container/Tube:
Preferred: Lavender top (EDTA)
Acceptable: Pink top (EDTA)
Submission Container/Tube: Plastic vial
Specimen volume: 3 mL
Collection instructions:
1. Draw blood in EDTA (lavender top) tube(s).
2. Centrifuge and send 1 mL of plasma refrigerated in a plastic vial.
Method Name
High Performance Liquid Chromatography/Tandem Mass Spectrometry (LC-MS/MS)
Reporting Name
Melatonin, PlasmaSpecimen Type
Plasma EDTASpecimen Minimum Volume
0.5 mL
Specimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Plasma EDTA | Refrigerated (preferred) | 30 days | |
| Frozen | 365 days | ||
| Ambient | 14 days |
Reference Values
Reporting limit determined each analysis.
Units: ng/mL
Day(s) Performed
Monday-Sunday
Report Available
6 to 12 daysPerforming Laboratory
NMS LabsCPT Code Information
80299
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| FMELA | Melatonin, Plasma | 11055-1 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| Z3521 | Melatonin | 11055-1 |