Advise on MMA,INSTINCT FAGTOR blood test while I am on b12 1000 mcg sulibgual

[Cooljay]

Hello Members, I need a advise on blood tests. Finally my Gp agreed to do the following tests but I am on b12 methylcobalmin 1000 mcg subligual & 400 folic, is it best to stop b12 & give blood after a week or can I give my blood anytime ? Please advise.

serum b12

serum folate

Methymalonic acid

intrinsic factor

parietal antibody test for the Autoimmune disease.

[clivealive Forum Support]

Hi Cooljay

Times for testing

"Taking supplements that contain B12 will affect any tests ordered by your doctor to assess your B12 status.

You should not take any supplement with B12 before having your B12 assessed (including MMA/homocysteine/Active B12).

For testing intrinsic factor antibodies: keep one week between an injection and the test".

See "Monitoring your condition"

nhs.uk/conditions/vitamin-b...

I am not a medically trained person but I've had Pernicious Anaemia (a form of B12 deficiency) for more than 46 years.

I wish you well.

[Cooljay in reply to clivealive]

Thanks clivealive..!! Appreciate your inputs..