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Test Code FMETF Metformin, Serum/Plasma

Reporting Name

Metformin

Performing Laboratory

NMS Labs

Specimen Type

Varies


Specimen Required


Submit only one of the following specimens:


Serum

Draw blood in a plain, red-top tube(s). (Serum gel tube is not acceptable.) Spin down and send 1 mL of serum refrigerate in a plastic vial (preservative free).

 

Plasma

Draw blood in a lavender-top (EDTA) tube(s) or Pink top tube. (Plasma gel tube is not acceptable.) Spin down and send 1 mL of plasma refrigerate in a plastic vial (preservative free).

 


Specimen Minimum Volume

0.3 mL

Specimen Stability Information

Specimen Type Temperature Time
Varies Refrigerated (preferred) 30 days
  Frozen  365 days
  Ambient  30 days

Reference Values

Reporting limit determined each analysis 

 

Synonym(s): Glucophage

 

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) and Time(s) Performed

Wednesday

CPT Code Information

80375

LOINC Code Information

Test ID Test Order Name Order LOINC Value
FMETF Metformin 35698-0

 

Result ID Test Result Name Result LOINC Value
Z1476 Metformin 35698-0
Z1344 Reporting Limit In Process

Method Name

High Performance Liquid Chromatography/Tandem Mass Spectrometry (LC-MS/MS)