150 pmol/l is this too low?

[Mattydonald]

Hi,

I did a medichecks active test and it has come back ^150 pmol/l

Are they reliable?

Is this too low? I’ve got lots of symptoms put down as post viral fatigue

Thanks

[fbirder]

No. It is high.

In fact it was too high for them to measure. That's what the '>' sign means. Your result was higher than 150 pmol/L while the low end of the normal range is 37.5 pmol/L

You may be confused because your test was for 'active' B12.

B12 in the blood is carried by one of two proteins, TC or HC. Only the TC-B12 can enter the cells. That is 'Active' B12. The normal test measures both TC-B12 and HC-B12. Normally, you can expect 4 times as much HC-B12 and TC-B12.