Nutrition cheat sheet 2

Nutrition cheat sheet 2 - Better to use GI tract-> use...

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Better to use GI tract -> “use it or lose it”- decrease in digestive enzyme secreting cells (lipase,protease)lack of absorption(diarrhea/puking); liver not involved in nutrient processing, so no gluconeogenesis/ lipogenesis. Enteral nutrition ->use when oral intake not enough(GI still functioning) 1)nongastric -(nose- stomach) gravity fed, high aspiration risk,easy to pull out. 2)PEG (percutaneous endoscopic gastronomy-stomach)long term, surgically inserted, needs to be checked before use, can have problems w/gastroparesis(delayed stomach emptying-extended fullness feeling->nausea)gravity worked. 3)PEJ (jejunostamy-si)- long term, surgically inserted, needs to be checked before use, infusion pump, permanent/longterm. ~ Formulas: a) Standard- (normal digestion)used in PEG,fatty acids/glucose b) hydrolyzed -(pre-digested)amino acids/shorter polypeptides/MCTs. MCTs-( medium chain triglycerides 12-14)more soluble-no emulsification for digestion, directly absorbed-> bad-gastroparesis, don’t provide Ω-3/6 FAs. Vs LCTs- (long chain 18)bile needed for emulsification, chylomicrons transport TGs through lacteals. *fat used b/c of more concentrated energy source* formulas can be tailored to specific need of patient, less fiber(GI disorder), fluid restriction(renal/congestive heart failure). *oral intake up to 2/3 to stop tube feeding* Parenteral-non-functioning GI tract (nutrients delivered to veins) 1)large central vein(TPN) delivers up to 4000cal/day(total daily intake), uses h20/amino acids/essential FAs/vitamins/minerals,used to rapidly improve nutrition status b/c of illness/ pre-existing malnutrition, long-term(non-tube)->bad-increased complications b/c imflammation/infection, GI tract not used-problems from use it or lose it, all b/c of too many
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Nutrition cheat sheet 2 - Better to use GI tract-> use...

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