Vitamin Deficiency Test lab tests in Lab Testing API Lab Test Test Cost Folate, RBC Blood Test $37.50 Folate, Serum Blood Test - Folate Blood Test $34.00 Intrinsic Factor Blocking Antibody Blood Test $75.00 Vitamin A (Retinol) Blood Test - Vitamin A blood test $52.00 Vitamin K Blood Test $82.00 Parietal Cell Antibody with Reflex to Titer Blood Test $46.00 Quest Vitamin D 25-Hydroxyvitamin D2 & D3 Blood Test $52.50 Vitamin B5 (Pantothenic Acid) Blood Test $69.00 Vitamin B3 (Niacin) Blood Test $73.50 Vitamin B2 (Riboflavin), Plasma Blood Test $68.00 Homocysteine Blood Test - Homocysteine Test $48.00 Vitamin E (Tocopherol) Blood Test - Vitamin E Blood Test $56.00 Vitamin B12 (Cobalamin) and Folate Panel, Serum Blood Test - Vitamin B12 deficiency blood test $39.00 Vitamin B12 (Cobalamin) Blood Test - Vitamin B12 Testing $31.00 Vitamin D, 25-Hydroxy, Total, Immunoassay Blood Test - Vitamin D Blood Test $43.00 Carotene Blood Test $47.00 Vitamin B6, Plasma Blood Test $64.00 Vitamin C, LC/MS/MS $42.00 Methylmalonic Acid Blood Test - Methylmalonic Acid Test (Blood) $99.00 Vitamin B1 (Thiamine), Blood, LC/MS/MS) Blood Test - Thiamine Blood Test $55.00 Vitamin Blood Test - vitamin d test cost $384.00 Vitamin D, 1,25-Dihydroxy, LC/MS/MS Blood Test - vitamin d test cost $85.50