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- W4247524597 abstract "Most, but not all, megaloblastic anemia is produced by ineffective erythropoiesis in the bone marrow due to either folic acid or vitamin B12 deficiency. In folic acid deficiency the cause frequently is inadequate dietary intake, whereas vitamin B12 deficiency is almost always conditioned by some specific type of malabsorption. Anemia with oval macrocytes, few reticulocytes, moderate leukopenia, and thrombocytopenia is typical of both. Aplastic anemia, refractory anemias with cellular marrow, preleukemia, aleukemia, and erythroleukemia may have somewhat similar blood findings but are usually recognizable from bone marrow biopsy. Decreased levels of folate or vitamin B12 are the most reliable criteria of megaloblastic anemia. With these available in advance, therapy with the appropriate vitamin can be begun at once. If serum levels are unavailable or available only in retrospect, initial treatment, especially of severe anemia, should be with both vitamins. Differentiation between folate and vitamin B12 deficiency is important but impossible by blood and bone marrow morphology alone. Thus, if serum levels are unavailable, the distinction must be made, sometimes retrospectively, on the basis of other laboratory examinations, such as gastric analysis, small-bowel x-ray films, and the Schilling test." @default.
- W4247524597 created "2022-05-12" @default.
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- W4247524597 date "1978-10-01" @default.
- W4247524597 modified "2023-10-12" @default.
- W4247524597 title "Megaloblastic anemia" @default.
- W4247524597 doi "https://doi.org/10.1080/00325481.1978.11714952" @default.
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