Jesus lord of glory help me Flashcards
how to get fat mls from kcals
divide by 1.1
Osmolarity
dextose grams x 5 + protien grams x 10 / volume if given
dextrose load
dextrose grams x 1000/ weight in kg/ min in a day 1440
fat load
fat grams / weight in kg
normal range of fat load
1 - 2.5
normal range of dextrose load
2-5
3.5 for diabetes
Enteral versus parenteral characteristics
Enteral nutrition: provision of nutrients into the GI tract through a tube or catheter when oral intake is inadequate (may include formulas as oral supplements or meal replacements)
Parenteral nutrition: provision of nutrients intravenously
Enteral formula characteristics/types
Standard polymeric formulas
Lactose-free, 1 kcal/mL with a balanced CHO, fat, and protein
Concentrated standard formulas: 1.5 to 2 kcal/mL for fluid restriction
High-nitrogen formulas (18%‒25% of calories
Increased protein requirements: burns, fistulas, sepsis, trauma
Elemental or predigested formulas
When the GI tract is compromised and polymeric formula is not tolerated
Specialized or disease-specific formulas
Aimed at a specific disease associated problem (e.g., renal products)
Predigested formulas
Fat is primarily MCT
Protein fragments: dipeptides, tripeptides, or oligopeptides
Disease specific (can be polymeric or predigested)
Modular components
Protein Intact vs. hydrolyzed affect osmolarity High protein Glutamine and arginine Carbohydrate 30% to 90% of kilocalories Source and degree of hydrolysis affect osmolarity Lactose is not used Addition of fiber lipid 1.5% to 55% of kilocalories 2% to 4% as linoleic acid Vitamins, minerals, and electrolytes DRIs; modified for specific formulas Fluid 1 kcal/mL formulas are about 80% water Amount of water depends on calorie density Provide additional water via tube as needed
When to use parenteral over enteral nutrition and vice versa
Enteral nutrition
For those who can’t eat or can’t eat enough
Should be first consideration
Parenteral nutrition
Reserved for nonfunctional or severely diminished small bowel
RQ
Over feeding intake of carbon dioxide over outtake
Common causes of TF intolerance
High residual
Abdominal dissention
Pain
Diarrhea
When is elemental formulas recommended?
Elemental or predigested formulas
When the GI tract is compromised and polymeric formula is not tolerated
300-500mOsm = isotonic know the difference between iso & hypertonic (which is
better tolerated?)
iso
Enteral tube options, and their characteristics
NGT: normal digestive, hormonal and bactericidal processes of stomach. Less risk complications
Tubing: soft, flexible and well-tomerated polyurethan or silicone tubes
Placed at bedside by nursing or possibly trained RD. Check placement by aspirating GI contents or XR confirmation.
Post-pyloric tube (NDT or NJT) = more complicated to insert (intraoperative, endoscopic or fluroscopic guidance, spontaneous placement via peristalsis, bedside with computer guidance)
Indicated if problems with gastric feeding: abdominal distention/discomfort, vomiting, persistent high gastric residuals (>400 ml). ? Higher risk for aspiration pnemonia
How you can maintain the patency of enteral access devices?
Flushing
No food
Nothing that’s not reccomened