Daughters bloodwork

[Mlkirk]

Hello,

My 10 year old daughter has had low grade fevers on and off for 5 weeks now and these tests came back abnormal. Do any of you have any insights about any of these? The high b12 makes me nervous.

WBC 4.71

RBC 4.43

Neutrophils relative 36

Lymphocytes relative 53

Neutrophils absolute 1.68

Creatinine .51

B12 1585

[Gambit62 Administrator]

If your daughter hasn't been supplementing then suggest you ask your GP to do liver and kidney panels.

[Mlkirk in reply to Gambit62]

She said her liver numbers were normal. Would kidney levels be checked in a CBC? Even with supplementation would it be normal to have levels that high? I thought with b12 you excrete what you can’t use.

[Gambit62 Administrator in reply to Mlkirk]

your body has a limit to how much B12 it can remove in a given period of time. If the rate at which you are putting B12 in is higher than this then it will raise the B12 levels.

Think of filling a bath. If you pull out the plug the water drains away - but if you still have the taps on full then that may mean water is going in faster than it is going down the plug hole so if you leave it too long it will end up overflowing.

This is particularly likely if your daughter is supplementing with high doses of B12 but doesn't have an absorption problem.

A complete Blood count is looking at what is going on with the constituent parts of your blood - the cells that make it up. It won't be looking at liver or kidney function where the testing would be looking for specific chemicals being present.

[Mlkirk in reply to Gambit62]

Thank you. That makes sense. We’re retesting next week and I stopped all vitamins for now. Hopefully that’s enough time for it to leave her system if her multi was causing it (it’s very high in b12). As of this morning her fever is still 100.2. That’s freaking me out more than anything . Hoping for mono and nothing more serious. It’s been almost 6 weeks with these low fevers.