This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Hematinics, Subject name: Pharmacology
Filgrastim is used for the treatment of: 
Select and explain. 
A. Neutropenia, B. Anemia, C. Polycythemia, D. Neutrophilia
A: Neutropenia
Answer: A: Neutropenia 
Explanation: Ans. (A) Neutropenia(Ref: Katzung's 11/e p580-581)Filgrastim (G-CSF) and sargramostim (GM-CSF) are used to prevent or treat chemotherapy induced neutropenia.Erythropoietin is used to treat anemia associated with chronic renal failure and cancer chemotherapy.Oprelvekin (1L-11) is used to prevent and treat thrombocytopenia.