I've recently discovered that while my 25-Hydroxy-D is normal (29.6 ng/mL), my calcitriol 1,25-D is extremely high (140 pg/mL). I am not
hypercalcaemic, and my parathyroid levels are normal. I've seen 2 endocrinologists, and both are puzzled by what could be causing this.
Interestingly enough, my 9 year old daughter seems to have the same problem. Her 25-H-D is normal, and her 1,25 D is 130 pg/mL. We're having her dad tested to see if this is genetic or environmental.
Is there any disorder or possible answer to why this could be happening? The endocrinologist had spoken of a genetic enzyme mutation that may cause it, but wasn't sure of the specifics. I'd love to get some insight on how this could be happening.