How often do you test Vitamin D levels and does it matter in your ICU?
How often do you test Vitamin D levels and does it matter in your ICU? Vitamin D is essentially needed in general population and the critically ill. This vitamin has significant role in maintaining immune function, cardiovascular state, glucose control and mucosal barrier function etc. 70 to 100 % have vitamin D deficiency in the ICU. Vitamin D supplementation is safe in general population and ICU patients. Hypervitaminosis D should be avoided through correct replacement regimen. Normal desirable levels: Labs report Vitamin D3 levels in two different units; ng/mL & nmol/L 1 ng/mL = 2.5 nmol/L Normal value 30-100 ng/mL (75 to 250 nmol/L) Anything over 100 ng/ml (250 nmol/l) for a prolonged period may be harmful. Dietary supplement upto 4,000 IU or less per day is considered safe. Supplements comparisons and dose schedules Oral Orally administered Vitamin D3 partially gets metabolized by the hepatic 25- hydroxylase enzyme a