Ferritin in teens

[Koi]

One of the labs my 15 year old daughter had was Ferritin. The normal range for her age group seems off to me compared to the others. Hers was 6.

Male

1-4 Years5-100 ng/mL

5-13 Years14-79 ng/mL

14-15 Years13-83 ng/mL

16-18 Years11-172 ng/mL

19-59 Years38-380 ng/mL

>59 Years24-380 ng/mL

Female

1-4 Years 5-100 ng/mL

5-13 Years 14-79 ng/mL

14-18 Years 6-67 ng/mL

19-40 Years 16-154 ng/mL

41-60 Years 16-232 ng/mL

>60 Years 16-288 ng/mL

 

[Scott Adams]

Low ferritin can be a symptom of undiagnosed celiac disease, are you posting the results of her ferritin levels because you suspect celiac disease? If so, she needs to be eating at least 2 slices of wheat bread daily for 6-8 weeks before a celiac blood panel is done:

 

[Koi]

She had the Ferritin done as part of the Celiac blood work. The normal range  for her age drops a lot, and I am wondering why.  At a result of 6, I would think it would be considered low but according to this chart, it is normal.

Her tTg IGA was >250 and Immunoglobin A was normal. EMA not ran because they ran out of specimen. Vitamin D 25 a little low and TSH a little elevated. 

[RMJ]

The  women’s ranges probably start to diverge from the men’s at 14-15 years old due to the beginning of menstruation, and monthly loss of iron.

Are these ranges from the lab that ran the test?  Looking on the internet the ranges are not all the same, even though the units used by labs are the same.  And the ranges are huge!  

[Koi]

Yes, from the lab. The normal values are so different for that age group.