Chapter 16: Nutrition Support Flashcards
the delivery of formulated enteral or parenteral nutrients to appropriate patients for the purpose of maintaining or restoring nutritional status
nutrition support
2 modes of nutrition support employed by practitioners for the nutritional care of a patient
enteral nutrition; parenteral nutrition
refers to the provision of nutrients both orally and via tube directly into the git
enteral nutrition
administer if preferred mode is:
-oral feeding, normal route og ingesting nutrients
-individual is not able to eat the adequate amounts required by the body either due to oral and swallowing problems, or a very high nutritional requirements
administering enteral feeding
in administering tube feeding (enteral nutrition), these are important consideration (3)
-functioning git
-length of feeding
-presence or risk of aspiration
patients with functional git but unable to orally ingest adequate nutrients to meet nutritional requirements can benefit from tube feeding
enteral feeing/tube feeding
indications for enteral feeding
_____ with inadequate oral intake of nutrients for the previous 5 days or normal nutritional status but with inadequate oral intake for the previous 7-10 days
protein-calorie-malnutrition
indications for enteral feeding
_____, such as comatose state, CVA, and parkinson’s disease
central nervous system disorders
indications for enteral feeding
_____, such as crohn’s disease, gastroparesis, short bowel syndrome, and chronic pancreatitis
git diseases
indications for enteral feeding
_____, such as severe depression and anorexia nervosa
psychiatric disorders
indication when nutritional requirements are still not met through oral nutrition supplements or tube feeding
parenteral nutrition
enteral nutrition preferred over parenteral nutrition because it is _____ (3)
safer, economical, and maintains gut structure and integrity
tube feeding routes of access depends on consideration upon assessment
nasogastric/nasoduodenal/nasojejunal, jejunostomy or percutaneous endoscopic gastronomy, or multiple lumen tubes
-
contraindications to enteral feeding
-complete intestinal or colonic obstruction
-intractable vomiting
-active git bleeding and shock
enteral nutrition formulas
are often classified to their (2)
protein content
overall macronutrient content
enteral nutrition formulas
composed of chon, cho, and fat in high molecular weight form and therefore have lower osmolality
formula require normal digestive and lipolytic activity
polymeric formula (nutritionally complete)
enteral nutrition formulas
have a low residue and use free amino acids or peptides as a protein source
oligosaccharides or monosaccharides provide the cho source and most contain medium as well as long chain triglycerides
elemental formula (chemically defined)
enteral nutrition formulas
not nutritionally complete because they contain single nutrients, such as cho, fat, or chon
can be added to standard enteral products
modular formula
enteral nutrition formulas
available for use in patients with a variety of clinical conditions including renal, respiratory, hepatic insufficiency, diabetes, immunocompromised states, and fat or cho malabsorption
specialty/disease-specific formula
tube feedings could also be prepared by liquefying regular foods that are selected from the soft diet using a blender
blenderized tube feeding
advantages of this type of feeding:
-cost effectiveness
-health benefits from using whole foods
-ability to tailor the formula exactly to patient needs
blenderized tube feeding
btf are contraindicated for patients who are immunocompromised, for infusion tubes smaller than _____, for continuous feeding (unless formula hangs for less than 2 hrs)
10 french
btf
if fluid restriction of less than _____ is requires, in cases of multiple food allergies, and if a jejunostomy tube (jt) is used
900 ml/day
enteral feeding for acute pancreatitis requires
very low fat-containing formula
btf considerations
may have a direct effect on git side effects and therapy tolerance to enteral therapy
formula osmolality
btf considerations
mineral contents of the formula (4)
Mg, Na, P, K
fluid requirements
recommended daily water requirement in the absence of hepatic, renal, or cardiac disease is _____
1ml/kcal
most 1 ml/kcal formulas contain approx. _____ of water
patients w/o fluid restriction should receive additional free water to at least 25% of the total formula volume which can be a
75%
most 1 ml/kcal formulas contain approx. 75% of water
patients w/o fluid restriction should receive additional free water to at least 25% of the total formula volume which can be administered into _____ or _____ separate doses
2-3