Vitamin B12 (Cobalamin) Blood Test Specimen Type:Blood The four-point collection maps the

The four-point collection maps the full daily cortisol curve and provides a more detailed picture of adrenal hormone rhythm than a two-point test

the adrenal hormone that regulates sodium retention

a protein produced exclusively by thyroid tissue

Used for fertility planning

Vitamin B12 (Cobalamin) Blood Test Specimen Type:Blood The four-point collection maps theMeasures serum vitamin B12 (cobalamin), needed for healthy nerve function, red blood cell production and DNA synthesis. Found almost exclusively in animal products, making deficiency common in vegetarians, vegans and people with absorption conditions. Deficiency develops slowly and can cause nerve damage if left unaddressed.