Hematocrit, reticulocyte count, vitamin B 12 , folate, and iron levels should be obtained prior to treatment
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If you don't know if you need it, why are you getting it
it's about maintaining a sterile environment to prevent contamination of your experiment
People who cannot absorb vitamin B 12 should continue to eat a well-balanced diet that provides other nutrients (folic acid, iron, and vitamin C) necessary to produce healthy blood cells
Common reasons include: Pernicious anemia , an autoimmune condition affecting intrinsic factor production Gastrointestinal disorders, such as Crohns disease or celiac disease Prolonged use of certain medications, like proton pump inhibitors Knowing these causes helps spot at-risk people