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Fatigue (PDQ®)

  • Updated: 08/28/2014

Table 1. Nutrition/Energy Factors

Mechanisms  Causes 
Altered ability to process nutrientsImpaired glucose, lipid, and protein metabolism
Increased energy requirementsTumor consumption of and competition for nutrients
Hypermetabolic state due to tumor growth
Infection/fever
Dyspnea
Decreased intake of energy sourcesAnorexia
Nausea/vomiting
Diarrhea
Bowel obstruction