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HelpTest Code MELATN Melatonin, Plasma
Specimen Required
Specimen Type: Plasma
Container/Tube:
Preferred: (Lavender top) EDTA
Acceptable: (pink top) EDTA
Specimen volume: 3 mL
Collection instructions: Draw blood in EDTA (lavender top) tube(s). Spin down and send 1 mL of plasma refrigerated in a plastic vial.
Secondary ID
75386Method 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 |
|---|---|---|
| Plasma EDTA | Refrigerated (preferred) | 30 days |
| Frozen | 365 days | |
| Ambient | 14 days |
Reject Due To
|
Hemolysis |
Mild reject; Gross reject |
|
Thawing |
Warm OK; Cold OK |
|
Lipemia |
Mild reject; Gross reject |
|
Icterus |
NA |
|
Other |
Polymer gel separation tube (SST or PST) |
Reference Values
Reporting limit determined each analysis.
Units: ng/mL
Day(s) and Time(s) Performed
Monday – Sunday
Performing Laboratory
NMS LabsCPT Code Information
80375
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 |