Testing for Diabetes lab tests in Walk-In Lab Lab Test Test Cost Glucose Serum Test $27.00 C-Peptide Serum Test - C-peptide Test $52.00 Fructosamine Blood Test $53.00 Glucose Tolerance (GTT) Blood Test, 2-Hour (Oral WHO Protocol) $32.00 Glucose Tolerance Test (GTT) Blood Test, 3-Hour, 4 Specimens $88.00 Gestational Diabetes Blood Test $25.00 Glucose Plasma Test $26.00 Fructosamine Blood Test $51.00 Insulin Response Blood Test, 3 Specimens $85.00 Hemoglobin (Hb) A1c With eAG Blood Test $34.00 Zinc Transporter 8 Antibody Blood Test $180.00 Insulin Fasting Blood Test $28.00 Insulin Fasting Blood Test - Insulin Blood Test $28.00 Glucose Plasma Test $28.00 Insulin Response to Glucose Blood Test, 2 Specimens $65.00 Glucose Blood Test, Two-hour Postprandial $33.00 Glucose Blood Test, Two-hour Postprandial $33.00 GlycoMark Blood Test $53.00 Glycohemoglobin Total Blood Test $49.00 Glucose Serum Test - Glucose Test $28.00 C-Peptide Serum Test $69.00 Gestational Diabetes Blood Test $25.00 Hemoglobin (Hb) A1c Blood Test $28.00 GlycoMark Blood Test $85.00