Vitamin Deficiency Test lab tests in Lab Testing API Lab Test Test Cost Methylmalonic Acid - Methylmalonic Acid Test (Blood) $98.16 Parietal Cell Antibody with Reflex to Titer $43.00 Vitamin B12 (Cobalamin) - Vitamin B12 Testing $31.00 Vitamin D, 1,25-Dihydroxy, LC/MS/MS - vitamin d test cost $96.51 Folate, RBC $36.50 Folate, Serum - Folate Blood Test $34.92 Vitamin B5 (Pantothenic Acid) $68.00 Vitamin D, 25-Hydroxy, Total, Immunoassay - Vitamin D Blood Test $42.54 Intrinsic Factor Blocking Antibody $74.32 Vitamin K $82.50 QuestAssureD 25-Hydroxyvitamin D (D2, D3), LC/MS/MS $58.99 Vitamin B2 (Riboflavin), Plasma $67.00 Carotene $46.00 Vitamin B1 (Thiamine), Blood, LC/MS/MS) - Thiamine Blood Test $53.00 Vitamin B12 (Cobalamin) and Folate Panel, Serum - Vitamin B12 deficiency blood test $84.04 Vitamin B3 (Niacin) $73.00 Vitamin A (Retinol) - Vitamin A blood test $53.00 Vitamin B6, Plasma $63.00 Vitamin E (Tocopherol) - Vitamin E Blood Test $116.00 Homocysteine - Homocysteine Test $53.56