Again, a Doctor Refuses to Test for Vitamin B12 Deficiency

Allen called Friday morning in a panic.
He said that a friend of his could not get tested for vitamin B12
deficiency. He was seeing the same doctor Allen had his trouble
with. Allen wondered if he should take his friend to the
endocrinologist we see or take this up with the local doctor. He
said his friend had been taking metformin longer than he had.




I suggested that he try the local