Radioisotopic assay for measurement of serum folate levels.

A radioisotopic assay is reported that 4 hr and can be run in unlimited quanaccurately measures an almost identical tity. This raclioassay should simplify diserum folate to that measured by Lactoagnosis of folate deficiency and be parbacillus casei and can separate low, ticularly useful in patients receiving borderline, and normal folate levels. This antibiotics and folate antagonists, where assay utilizes a powdered milk available the microbiological assay gives false low in any grocery. The assay takes less than results.