VITAMIN D, 1, 25-DIHYDROXY

VITAMIN D, 1, 25-DIHYDROXYVITAMIN D, 1, 25-DIHYDROXY

VITAMIN D, 1, 25-DIHYDROXY

Method of Collection:

Plain Vacutainer 5 Ml Blood (Fasting) (Transfer into plastic transport container wrap in aluminium foil paper) Ref. Range Unit 15.9 - 55.6 pg/mL


Days for reporting:

10 Days


Reference:

REFERENCE RANGE: 39-193 pmol/L

 


Why is the Test Done?

When calcium is high or a person has a disease that might produce excess amounts of vitamin D, such as sarcoidosis or some forms of lymphoma (because immune cells may make 1,25-dihydroxyvitamin D), 1,25-dihydroxyvitamin D usually is ordered. Rarely, this testing may be indicated when abnormalities of the enzyme that converts 25-hydroxyvitamin D to 1,25-dihydroxyvitamin D or renal disease are suspected.When vitamin D, calcium, phosphorus, or magnesium supplementation is necessary, vitamin D levels are sometimes measured to monitor treatment effectiveness.


How to prepare for the Test:

NO PREPRATION


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