Testing for Diabetes lab tests in Lab Testing API Lab Test Test Cost Hemoglobin A1c Blood Test (with Reflex to GlycoMark) $39.00 Glucose Tolerance Blood Test (3 Specimens) $44.00 Insulin Blood Test - Insulin Blood Test $27.50 Fructosamine Blood Test $47.00 Glucose Blood Test - Glucose Test $31.00 Insulin, Free (Bioactive) Blood Test $102.00 Cardio IQ Insulin Blood Test $42.00 Hemoglobin and Hematocrit Blood Test $30.00 C-Peptide Blood Test (CPS) - C-peptide Test $64.00 Insulin Response to Glucose Blood Test (2 Specimens) $42.00 Hemoglobin A1c with CalculatedMean Plasma Glucose (MPG) Blood Test $36.00