When the cancer patient becomes anemic.
D000740:Anemia / Q000175:diagnosis* / Q000209:etiology; D004032:Diet; D006801:Humans; D007501:Iron / Q000627:therapeutic use; D009369:Neoplasms / Q000150:complications*; D009722:Nurse Practitioners; D009730:Nursing Assessment; D009736:Nursing Process; D010353:Patient Education as Topic
D007501:Iron