IV nutrition Flashcards
1
Q
when is IV nutrition given
A
given when adequate nutrition is not possible
2
Q
what are the 2 methods of IV nutrition
A
- supplemental parental nutrition (additional to ordinary feed)
- total parental nutrition (TPN) sole source of nutrition
3
Q
how is IV nutrition given
A
infused through central venous catheter or peripheral vein
4
Q
what is contained in IV nutrition
A
- amino acids
- glucose
- fats
- electrolytes
- trace elements
- vitamins
5
Q
what is contained additionally?
A
- protein
- glucose (preferred carb)
- fructose + sorbitol
- fat emulsions
6
Q
how is protein given and why
A
- given as synthetic L-amino acids
- source of energy
7
Q
how is glucose given
A
infused via central venous catheter to avoid thrombosis
8
Q
why is phosphate given
A
for phosphorylation of glucose and prevent hypophosphateamia
9
Q
why is fructose + sorbitol given
A
prevents hyperosmolar hyperglycaemic non-ketotic acidosis
10
Q
what does fat emulsions provide
A
- high energy to fluid volume ratio
- don’t mix in additives
