Home
HelpTest ID FMETN Metformin, Plasma
Specimen 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
Submission Container/Tube: Plastic vial
Specimen volume: 1 mL
Collection instructions: Draw blood in an EDTA (lavender top or pink top) tube(s).
(Plasma gel tube is not acceptable.) Spin down and send 1 mL of plasma refrigerated in a preservative-free plastic vial.
Method Name
High Performance Liquid Chromatography/Tandem Mass Spectrometry (LC-MS/MS)
Reporting Name
Metformin, PlasmaSpecimen Type
Plasma EDTASpecimen 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
Report Available
6 to 12 daysPerforming Laboratory
NMS LabsTest 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 |