Things that might lead to dose changes include how bad the deficiency was, if there are nerve symptoms, if theres ongoing trouble absorbing nutrients, and how each patient responds
IV drips typically take 20 to 40 minutes as the solution infuses gradually
These are not marginal results
[11] In practice, the benefit of treating a true B deficiency in pregnancy, preventing anemia and neurological injury, is considered to far outweigh any theoretical risks, under the guidance of a healthcare professional
Additional tests may include full blood count (to check for macrocytic anaemia), methylmalonic acid and homocysteine levels (which rise in B12 deficiency), and tests for intrinsic factor antibodies if pernicious anaemia is suspected