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HelpTest Code FMETN Metformin, Plasma
Reporting Name
Metformin, PlasmaMethod Name
High Performance Liquid Chromatography/Tandem Mass Spectrometry (LC-MS/MS)
Performing Laboratory
NMS LabsSpecimen Type
Plasma EDTASpecimen Required
***Must submit one specimen per order. Specimens cannot be shared between multiple orders.***
Specimen Type: Plasma
Collection Container/Tube: Lavender top or pink top (EDTA) (Plasma gel tubes are not acceptable)
Submission Container/Tube: Plastic vial
Specimen volume: 1 mL
Collection instructions:
1. Draw blood in an EDTA (lavender top or pink top) tube.
2. Centrifuge and aliquot 1 mL of plasma into a preservative-free plastic vial.
3. Send refrigerated (preferred)
Specimen Stability Information: Refrigerated (preferred) 30 days/Ambient 30 days/Frozen 2 years
Reject Due To
| Polymer gel separation tube (SST or PST) | Reject |
Specimen Minimum Volume
0.5 mL
Specimen Stability Information
| Specimen Type | Temperature | Time |
|---|---|---|
| Plasma EDTA | Refrigerated (preferred) | 30 days |
| Ambient | 30 days | |
| Frozen | ||
Reference Values
Reporting limit determined each analysis.
Units: mcg/mL
Therapeutic range: Approximately 1-2 mcg/mL.
Metformin associated lactic acidosis generally has been associated with Metformin plasma concentrations exceeding 5 mcg/mL.
Day(s) Performed
Monday through Sunday
Test Classification
This test was developed and its performance characteristics determined by NMS Labs. It has not been cleared or approved by the U.S. Food and Drug Administration.CPT Code Information
80299
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| FMETN | Metformin, Plasma | 35698-0 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| Z3525 | Metformin | 35698-0 |