Nutrition Needs/Formula Selection
•Medical
Foods
–Fluids
35 ml/kg/d
•May be
increased with
increased losses
–Calories
20-35 kcal/kg/d
–Protein
1.0-1.5 g/kg/d
•May be
increased in
wounds, acute/chronic
disease, malnutrition
–With/without
fiber
–Disease-specific
needs
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Because most formulas
that yield 1 calorie per ml will contain around 80% water, the
patient receiving 1500 ml per day would receive about 1500 calories
and about 1200 ml of water. Fever, diarrhea, vomiting, and sweating
may require additional fluids.
Calorie needs range widely and will usually fall between 20-35
calories per kg of body weight per day. Protein needs generally
range between 1.0 to 1.5 grams per kilogram of body weight per day.
Protein and calorie needs may be on the high end or higher in cases
of disease, wounds (including burns), and malnutrition.
There are many features of formulas to tailor to the patient needs
and tolerances, including formulas that contain fiber, emphasize or
de-emphasize particular nutrients, or address dietary needs of
specific diseases or conditions.
Tube Placement
Tube
placement decisions are made based on the issues that need
to be dealt with, such as risk for aspiration, length of
time that a need for tube feedings are anticipated, and
disease or other condition requirements. Tubes are generally
placed nasally or through a stoma (enterostomy).
Types of tube placement
Location
Nasogastric/intestinal
–
most common for short term
Enterostomy – longer
term requirements
Methods
Nasogastric – beside
may be common
Distal to pylorus – placed with assistance of
endoscopy or fluoroscopy
Enterostomy – surgical
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Nasogastric feedings are commonly placed for patients who may
require tube feeding for a month or less. New tubes that are fine
bore have made it easier to avoid irritation, esophageal reflux, and
other discomforts associated with larger bore tubes. Trained staff
should insert the tubes to reduce the risk of misplacement and
perforations. In some cases, gastric feeding may not be
well-tolerated. Nasally placed tubes can also be placed to deliver
nutrients directly into the intestine at the duodenal or jejunal
levels. Feedings into the small intestine may be most appropriate in
patients who have gastroparesis, problems with reflux and risk of
aspiration, and in cases of pancreatitis.