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Labcorp Oklahoma, Inc.
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Metformin Quantitative

Order Name Metformin Qnt
Test Number: 3488420
Revision Date 12/12/2022
Test Name Methodology LOINC Code
Metformin Quantitative
High-pressure liquid chromatography (HPLC) tandem mass spectrometry. 35698-0 
SPECIMEN REQUIREMENTS
Specimen Specimen Volume (min) Specimen Type Specimen Container Transport Environment
Preferred 1.0mL ( 0.3mL) Serum Clot Activator (Red Top, No-Gel) Refrigerated
Alternate 1 1.0mL ( 0.3mL) Plasma Gray (sodium fluoride/potassium oxalate) Refrigerated
Alternate 2 1.0mL ( 0.3mL) Plasma EDTA (Lavender Top) Refrigerated
Instructions Specimen Type: Red-top tube, lavender-top (EDTA) tube or gray-top (sodium fluoride) tube
Specimen Storage: Refrigerated
Specimen Collection: Serum or plasma should be separated from cells within two hours of venipuncture. Send serum or plasma in a plastic transport tube.
Special Instructions: Testing referred to National Medical Services NMSPA#2740SP
Specimen Stability: Ambient: 1 month, Refrigerated : 1 month, Frozen: 24 months
GENERAL INFORMATION
Expected TAT 9 - 15 days  
Performing Labcorp Test Code 804122 
Notes Labcorp Test Code: 804122
CPT Code(s) 80375 (G0480)
Lab Section Reference Lab