The nurse on an oncology floor is administering morning medications. Which medication should the nurse question? 1. Cyanocobalamin (vitamin B12) to a client with pernicious anemia. 2. Erythropoietin...

The nurse on an oncology floor is administering morning medications. Which medication should the nurse question?

1. Cyanocobalamin (vitamin B12) to a client with pernicious anemia.

2. Erythropoietin (Epogen) to a client with chronic lymphocytic leukemia.

3. Filgrastim (Neupogen) to a client with a solid tissue tumor.

4. Heparin intravenously to a client with disseminated intravascular coagulation

(DIC).