Metformin




Test Mnemonic

MTFORM

CPT Codes

  • 80375 - QTY (1)

LOINC ®

35698-0

Aliases

  • Glucophage

Includes

  • Metformin

Performing Laboratory

National Med Serv Inc


Specimen Requirements

Volume Type Container Collect Temperature Transport Temperature Special Instructions
1 mLSerumNo additive (Red) RefrigeratedDo not use serum separator tubes. Separate serum from cells ASAP.

Alternate Specimen Requirements

Volume Type Container Collect Temperature Transport Temperature Special Instructions
1 mLPlasmaEDTA (Lavender) RefrigeratedDo not use plasma separator tubes. Separate plasma from cells ASAP.

Minimum Specimen Requirements

Volume Type Container Collect Temperature Transport Temperature Special Instructions
0.3 mL     

Stability

Environmental Condition Description
Ambient1 month
Refrigerated1 month
Frozen2 years

Days Performed

Mon - Sun

Turnaround Time

9 - 10 days

Methodology

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

Reference Range

Metformin
Sex Age From Age To Type Range Range Unit
   Years99 YearsNormal1.0 - 2.0mcg/mL

Special Info

Polymer gel separation tubes (SST or PST) will be rejected. This test is New York DOH approved.

Clinical Info

Oral hypoglycemic agent. Reporting limit: 0.10 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.