A VITAMIN B12 TEST MEASURES THE AMOUNT OF VITAMIN B12 IN YOUR BLOOD. VITAMIN B12 IS ESSENTIAL FOR RED BLOOD CELL FORMATION, NERVE FUNCTION, AND DNA SYNTHESIS. THIS TEST HELPS DIAGNOSE VITAMIN B12 DEFICIENCY, WHICH CAN CAUSE ANEMIA, FATIGUE, WEAKNESS, AND NEUROLOGICAL SYMPTOMS. ITS OFTEN RECOMMENDED FOR PEOPLE WITH CERTAIN MEDICAL CONDITIONS, OLDER ADULTS, VEGANS, AND VEGETARIANS WHO MAY BE AT HIGHER RISK FOR DEFICIENCY.

A VITAMIN D TOTAL 25-HYDROXY TEST MEASURES THE LEVEL OF 25-HYDROXYVITAMIN D IN YOUR BLOOD. THIS IS THE PRIMARY FORM OF VITAMIN D CIRCULATING IN THE BODY AND REFLECTS YOUR OVERALL VITAMIN D STATUS. VITAMIN D IS ESSENTIAL FOR CALCIUM ABSORPTION, BONE HEALTH, AND IMMUNE FUNCTION. THIS TEST HELPS DETERMINE IF YOU HAVE A VITAMIN D DEFICIENCY, WHICH CAN LEAD TO BONE DISEASES LIKE OSTEOPOROSIS AND RICKETS, AS WELL AS OTHER HEALTH ISSUES.