Metabolic Responses to Stress
- Created by: Nathan
- Created on: 18-04-13 16:08
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- Physiological Stress on Metabolism
- Physiological stresses
- Burns
- Surgery
- Trauma
- Fever
- Infections
- Metabolic Responses to Stress
- Inc. caloric intake
- Often unable to meet nutritional demands
- Inc. risk of infection
- Suppressed immune system
- Rise in metabolic rate
- Body need more energy
- Impaired liver, kidney & heart funtion
- Endogenous resources used for repair & healing
- Proteolysis of lean body mass
- Losses of vitamins, minerals and electrolyes
- Inc. caloric intake
- Endocrine Responses
- Cortisol utilises AAs from skeletal protein
- Adrenaline stimulates glycogenolysis, lypolysis and gluconeogenesis
- Aldosterone- sodium retention
- ADH- water retention
- Maintains blood volume
- Adrenaline stimulates glycogenolysis, lypolysis and gluconeogenesis
- Maintains blood volume
- Interleukin-1&6 and tissue necrosis factor
- Produced by phagocytes in response to tissue damage
- Induce production of proteins
- Physiological stresses
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