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Metformin Quantitative, Serum or Plasma
0092390
Ordering Recommendation

Preferred test when determining if hypoglycemia is from exposure to metformin. Serum or plasma is the preferred specimen for correlating drug use with hypoglycemia.

Mnemonic
METFORM SP
Methodology
Quantitative High Performance Liquid Chromatography-Tandem Mass Spectrometry
Performed
Varies
Reported
3-10 days
New York DOH Approval Status
This test is New York DOH approved.
Submit With Order
ARUP Consult®
Disease Topics
Specimen Required
Patient Preparation
 
Collect
Plain red, lavender (EDTA), or pink (K2EDTA). 
Specimen Preparation
Transfer 1 mL serum or plasma to an ARUP Standard Transport Tube. (Min: 0.3 mL) 
Storage/Transport Temperature
Refrigerated. Also acceptable: Room temperature or frozen. 
Unacceptable Conditions
Separator tubes. 
Remarks
 
Stability
Ambient: 1 month; Refrigerated: 1 month; Frozen: 2 years 
Reference Interval
By report
Interpretive Data


Note
CPT Code(s)
Components
Component Test Code*Component Chart NameLOINC
0092391Metformin Quantitative, Serum or Plasma35698-0
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.
Aliases
  • Glucophage

Performed at National Medical Services (NMS)