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Valley Stream, NY
A 46-year-old male asked:

Vitamin d,1, 25-dihydroxy 90 pg/ml. calcium 9.7 mg/dl. pth 49 pg/ml. hscrp 0.2 mg/l. feeling well. no d hydroxy was done. what would cause the high d?

2 doctor answers3 doctors weighed in
Dr. Michael Kleerekoper
A Verified Doctoranswered
Endocrinology 52 years experience
Vitamin D: 90 pg/ml for 1-25 D is a bit high but not too bad when seen with the other numbers. I don't know why 1-25 but not 25 hydroxy vitamin d was not done. Have your doctor set that up for you.
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Dr. Thomas Knecht
A Verified Doctoranswered
32 years experience
Repeat or ignore: Hi. An elevated 1,25-dihydroxy D (1,25-D) in the setting of normal blood calcium and PTH is not physiologically plausible. Because it's a mild elevation, I would repeat it, or just ignore it. You can get a 25-hydroxy D (25-D); that tests for vitamin D adequacy/insufficiency. 1,25-D tests for a non-PTH cause of hypercalcemia and some kidney conditions.
Created for people with ongoing healthcare needs but benefits everyone.
Last updated May 2, 2019


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