NEET PG- Nutrition Flashcards
Indication of Parenteral Nutrition
Short Bowel
Enterocutaneous fistula
Types of Parenteral Nutrition
Peripheral access- Peripherally inserted central venous catheter (PICC), tip in SVC
Central access
Disadvantages of PICC
Survival duration 7 days
Irreversible Thrombophlebitis
Most preferred Central Venous Access
Infraclavicular Subclavian
Disadvantages of Parenteral Nutrition
Metabolic- Fluid overload, hyperglycaemia,vitamin deficiencies
Catheter related sepsis
Refeeding syndrome
Bile Acid Diarrhoea
1) Limited ileal disease
2) Ileal bile acid reabsorption reduced
3) Fecal excretion increased
4) Hepatic synthesis compensation
5) Bile acid pool size normal
6) Mild steatorrhea
7) Cholestyramine
8) Intraduodenal Bile normal
Phases of Lipid Digestion
Digestive
Absorptive
Post Absorptive
Digestive phase disorders
Lipolysis formation- decreased lipase secretion- Chronic Pancreatitis
Micelle Formation- Decreased intraduodenal bile acids- PBC
Absorptive phase disorders
Mucosal dysfunction- Celiac disease
Postabsorptive
Chylomicron- Absent Beta lipoproteins
Abnormal lymphatics- Intestinal lymphangiectasia
Urinary D Xylose test
<4.5gm= Duodenal or jejunal disease
Xylose exclusively absorbed in proximal intestine
Pellagra
(Niacin Deficiency)
Carcinoid Syndrome
Hartnup Disease
Riboflavin Deficiency
Celiac disease (dermatitis herpetiformis)
Early Food Poisoning (1-6 hrs)
Staph Aureus
Bacillus Cereus
Intermediate (8-16hrs)
Clostridium perfringes
Bacillus Cereus
