Appropriate guidelines for the use of TPN in cancer patients include:
A.	Long-term TPN in patients with rapid progressive tumor growth unresponsive to other therapy
B.	Mildly malnourished patients undergoing surgery for a curable cancer
C.	Preoperatively administered TPN prior to surgery or other therapy in patients with severe malnutrition
D.	Patients in whom treatment toxicity precludes the use of enteral nutrition
Answer:C
Appropriate guidelines for the use of TPN in cancer patients include:
A.	Long-term TPN in patients with rapid progressive tumor growth unresponsive to other therapy B.	Mildly malnourished patients undergoing surgery for a curable cancer C.	Preoperatively administered TPN prior to surgery or other therapy in patients with severe malnutrition D.	Patients in whom treatment toxicity precludes the use of enteral nutrition