Testing for Diabetes lab tests in Lab Testing API Lab Test Test Cost Glucose Blood Test - Glucose Test $26.00 Insulin, Free (Bioactive) Blood Test $85.00 C-Peptide Blood Test (CPS) - C-peptide Test $53.50 Glycomark ® Blood Test $55.00 Hemoglobin A1c Blood Test (with Reflex to GlycoMark) $32.50 Hemoglobin A1c with CalculatedMean Plasma Glucose (MPG) Blood Test $30.00 Hemoglobin A1c with eAG with Reflex to GlycoMark Blood Test $32.50 Cardio IQ Insulin Blood Test $35.00 Fructosamine Blood Test $39.00 Insulin Blood Test - Insulin Blood Test $26.50 Insulin Response to Glucose Blood Test (2 Specimens) $35.00 Glucose Tolerance Blood Test (3 Specimens) $36.50 Hemoglobin and Hematocrit Blood Test $25.00