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NTR 604 - Midterm Parenteral Nutrition Acid-Base Balance Exam Questions with Complete Answers
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NTR 604 - Midterm Parenteral Nutrition Acid-Base Balance Exam Questions with Complete Answers
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NTR 604 - Midterm Parenteral NutritionAcid-Base Balance Exam Questions with
Complete Answers
intravenous infusion of protein, carbohydrate, fat, vitamins and minerals - Answer-
parenteral nutrition
3 indications for parenteral nutrition - Answer-failed trial of EN with post-pyloric
placement
diminished function of intestinal tract
patient not expected to tolerate EN for 5-10 days
TPN is a ___ solution that must be delivered by a large diameter vein, usually the ____
- Answer-hyperosmolar, superior vena cava
how long can you use TPN? - Answer-weeks, months, or years
TPN has a ___ glucose content - usually what concentration? - Answer-high
15-25%
Peripheral parenteral nutrition uses the same components as TPN but in a ___
concentration
usually given through a ___ vein - Answer-lower
peripheral
how long is PPN usually given for? - Answer-short periods (<2 weeks)
why is there a risk of phlebitis in PPN? - Answer-high osmolarity of the solution given in
the small size of the peripheral vein
2 advantages of PPN - Answer-access at bedside
less complications than TPN
2 disadvantages of PPN - Answer-low concentration of nutrients so difficult to meet full
nutritional needs
high fluid volume
, modified AA solutions have been developed for patients with ___, ___ failure or ___ -
Answer-hepatic, renal, critical illness
what concentration AA do you typically use in PPN?
what about TPN?
and what about for fluid restricted patients? - Answer-5.5-8.5%
10%
15%
how many kcals/gram is provided by carbohydrates (dextrose) in PN? - Answer-3.4
kcal/g
when using a central line, which concentration of carbohydrates do you use? - Answer-
higher concentration - >10%
minimum carbohydrate requirements in PN - Answer-100-150 g/day
what amount of carbs should you provide to a hyperglycemic or highly stressed patient?
- Answer-4-5 g/kg
energy yield of lipid for 10% solution =
energy yield of lipid for 20% solution = - Answer-1.1 kcal/ml
2 kcal/ml
how many calories does 1 g fat from 10% lipid yield?
what about 20%? - Answer-11 calories
10 calories
which % lipid should you use for PPN?
what about for a central line? - Answer-10%
20%
PN lipid is ___ meaning that it does not contribute to osmolarity of a solution - Answer-
isotonic
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