A doctor is treating a patient who has some form of anemia. First, the doctor tries to give the patient extra vitamins that contain iron, to no effect. There is no evidence of lead poisoning

The doctor tries an injection of vitamin B12, and the anemia is under control. What type of anemia did the patient have? A) iron-deficiency anemia
B) sickle-cell anemia
C) pernicious anemia
D) hemorrhagic anemia


C

Biology & Microbiology

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