My 8 year old had her blood tested twice in the past two weeks (suffered a broken arm). Results came back both times with high vitamin d level (137.8 ng/mL). Her pediatrician recommended seeing an endocrinologist at Texas Childrens. How concerned should we be with this? Anyone have experience with this?

There are a few conditions that can cause elevated vitamin d levels. But they are rare.

I'm assuming she doesn't take any vitamin d containing supplements or consume lots of vitamin d fortified dairy or other products?

There was a case report I read q long time ago where a lady was scared of osteoporosis that ran in her family, so she consumed a ton of dairy vitamin D and stuff did lots of exercises and running. Vitamin D can build strong bones, but also activates the osteoclast cells that degrade bone. So they think she had so much vitamin D that the osteoclasts were excessively activated and she ended up developing a bunch of stress and pathological fractures.

you're correct. she doesn't take any supplements or anything like that, nor does she consume a ton of the dairy type of things. My wife and I are completely freaked out wtf is going on.


they did a blood test thinking her vitamin d might be low, because she's broken both arms this past year (granted, freak accidents), but these two blood tests showing the opposite with elevated vitamin D has us freaked out.

I've never had a case like this. Endo sounds like a good idea. Any other lab results? From a quick grok query im mostly would want to rule out Histoocystosis x (dx one in my career) and sarcoidosis(one in my career)

Snippet from AI:
Granulomatous disease (elevated 1,25-(OH)D, normal/low-normal 25-OH-D)
Sarcoidosis (juvenile sarcoidosis rare <5 yrs)
Tuberculosis (disseminated or miliary)
Histoplasmosis, cryptococcosis, coccidioidomycosis
Crohn disease / inflammatory bowel disease
Langerhans cell histiocytosis
Lab: 1,25-(OH)D, Ca, ACE (sarcoid), suppressed PTH, normal 25-OH-D
Clue: hilar adenopathy, rash, bone lesions, fever