Low molecular weight heparin inhibits: (A) Factor Xa, (B) Factor Xa and II a, (C) Factor II a, (D) Factors II, VII, IX and X
Answer is B. Prophylaxis of neural tube defects require treatment with folic acid.
Methotrexate toxicity can be prevented by 5′-formyltetrahydrofolate (folinic acid).
Pernicious anemia requires the therapy with vitamin B12
Anemia associated with chronic renal failure is treated with erythropoietin.