24 Table 3 Estimated Sensitivity and Specificity of Serum Laboratory Tests for Vitamin B12 Deficiency Pernicious anemia refers to one of the hematologic manifestations of chronic auto-immune gastritis, in which the immune system targets the parietal cells of the stomach or intrinsic factor itself, leading to decreased absorption of vitamin B 12
Here are the best vitamin B12 injection sites for each method: Subcutaneous B12 injection sites Usually, the best places to give yourself a B12 shot subcutaneously are the abdomen, thigh, and upper arm, as you can see in this illustration: Although not shown above, the buttock is another good site for B12 shots
In the United States, patients usually receive vitamin B 12 injections of 1 mg/d in their first week of treatment
These injections often lead to rapid improvements in symptoms such as fatigue, numbness, or neurological disturbances, making them a preferred treatment option among those with severe deficiencies
More energy Has my b levels on point Perfect for energy and overall feeling great
