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Test 4 - Nutrition
based on Prof. Dunn's study sheet
52
Nursing
Professional
11/21/2010

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Cards

Term
Macronutrients
Definition
macronutrients are ESSENTIAL NUTRIENTS and have to be supplied by the diet.

CARBS - FATS - PROTEIN
Not synthesized in the body or are made in insufficient amounts

supply energy and build tissue – (Carbohydrates, fats, and protein)
Term
micronuterients
Definition
micronutrients are non-essential nutrients – required in much smaller amounts to regulate and control body processes

VINTAMINS - MINERALS - WATER
do not have to be supplied through dietary sources because they either are not required for body functioning or are synthesized in the body in adequate amounts – Vitamins, minerals, and water.
Term
essential nutrients
Definition
essential nutrients are MACRONUTRIENTS
carbohydrates
fats
protein
Term
Regulatory nutrients
Definition
regulatory nutrients are the micronutrients:

VITAMINS
MINERALS
WATER
Term
ENERGY nutrients
Definition
energy nutrients are the MACRONUTRIENTS:

lipids
carbohydrates
protein
Term
What hormones keep glucose levels fairly constant during fasting and feasting?
Definition
Insulin and glucagon regulate glucose levels
Term
six classes of nutrients:
Definition
carbohydrates
lipids
proteins
vitamins
minerals
water
Term
insulin
Definition
Insulin is a hormone that regulates glucose levels in the blood.
Term
glucagon
Definition
glucagon is a hormone that regulates insulin in the blood
Term
function of protein
Definition
Protein maintains tissue that breaks down and supports growth of new tissue
Term
amino acids
Definition
amino acids are the building blocks of proteins.

the human body can produce 10 of the 20 amino acids needed

They contain nitrogen
Term
nitrogen balance
Definition
nitrogen balance is when the amount of nitrogen intake equals nitrogen excretion.

Some groups have a positive nitrogen balance (intake more nitrogen than they excrete) These are:
- pregnant women
- growing babies/children/adolescents
- lactating women
- those recovering from illness
Term
Function of Lipids
Definition
Lipids are the most concentrated form of energy in the diet.

lipids aid in absorption of vitamins, temperature regulation, and structure.
Term
triglycerides
Definition
triglycerides comprise 95% of lipids in the diet.
Term
cholesterol
Definition
cholesterol is a form of fat found exclusively in animal products.
Term
vitamins
Definition
vitamins are not syntesied in the body and must be a part of the diet.

vitamins are needed in the metabolism of carbohydrates, lipids, and proteins
Term
minerals
Definition
minerals are essential in the structure and regulation of body processes.

there are MACROminerals and MICROminerals
Term
macrominerals
Definition
macrominerals are needed in the body in amounts greater than 110mg/day:
- calcium
- phosphorus
- sulfur
- sodium chloride
- potassium
- magnesium
Term
microminerals
Definition
microminerals are needed in the body and have a recommended dietary intake established. These are:
- iron
- zinc
- magnesium
- chromium
- copper
- molybdenum
- selenium
- fluoride
- iodine
Term
where is 2/3 of the body's water contained?
Definition
Intracellular fluid contains 2/3 of the body's water.
Term
intracellular fluid
Definition
intracellular fluid contains 2/3 of the body's total water.
Term
energy measurement
Definition
energy is measured in calories and kilocalories

1 calorie = energy required to raise 1 mL of water 1 degree Celcius.
Term
Basal Metabolic Rate
Definition
BMR is the amount of calories required for the body to carry out basic involuntary daily functions (digestion, breathing, circulation, etc)
Term
Basal Metabolic Rate formula
Definition
BMR:

HEALTHY body weight(lbs) x 10(women) = BMR
HEALTHY body weight(lbs) x 11 (men)= BMR
Term
caloric requirement formula
Definition
the formula to figure caloric requirement:

figure activity level:
- 1.2 - sedentary lifestyle
- 1.3 - light activity lifestyle
- 1.4 - moderate activity lifestyles
- 1.5 - high activity (sports/labor job)

BMR x activity level = total daily calories

1500 x 1.4 = 1950
Term
calories contained in 1 lb body fat
Definition
1lb body fat = 3500 calories
Term
Anthropometric Data
Definition
Anthropometric data:
- height
- weight
- skin-fold measurements
- mid-arm circumference
Term
lavage
Definition
Lavage is a "cleaning out" of the intestines before intestinal surgery or diagnostics test.

An oral solution is ingested and the intestines will be cleaned out within 4-6 hours.
Term
decompression
Definition
decompression is a process that decompresses or drains the stomach of unwanted fluid or contents.
Term
Dobhoff feeding tube
Definition
The Dobhoff feeding tube is smaller in diameter than the Levin feeding tube and is more comfortable for the patient and causes less trauma to naris.

The Dobhoff tube is more difficult to check tube-placement and administer medications through because of it's small diameter.
Term
Levin Feeding tube
Definition
The Leven NG tube is a larger diameter than the Dobhoff tube and allows for attachment of feeding apparatus and medication administration.

The tube is larger, though, and can cause more discomfort.
Term
Enteral Nutrition
Definition
Enteral Nutrition is when nutrients is provided for the patient directly to the stomach (bypassing the mouth and throat)
Term
nasointestinal tubes
Definition
like an NG tube, but the tube bypasses the stomach entirely and rests in the small intestine.

more prone to "dumping syndrome"
Term
Commercially Prepared Enteral Formula
Definition
Commercially Prepared Enteral Formulas contain
- carbohydrates
- lipids
- protein
Term
Chemically Defined Formula
Definition
A chemically defined formula is predigested and easy-to-absorb:
- peptomen
- vivonex
Term
Low Protein Formulas
Definition
Low protein formulas have "modular components" such as low protein formulas for renal and liver disease patients
Term
bolus feeding
Definition
a bolus feeding is a type of enteral feeding that is administered all at one time.

For patients who can digest a large amount of formula at one time.
Term
continuous infusion feeding
Definition
Continuous Infusion Feeding is a form of enteral feeding that administers formula at a constant slow rate to the stomach
Term
Intermittent Gravity Drip Feeding
Definition
Intermittent gravity drip feedings administer a set volume of formula intermittently throughout the day.

example: 250mL every 4 hours.
Term
Stomach pH
Definition
The normal pH range of the stomach:

1.5 - 5.5
Term
Intestinal pH
Definition
Normal range of intestinal pH:

7 and up
Term
respiratory tract pH
Definition
The normal pH range for the respiratory tract:

6 and up
Term
Can enteral feedings be started directly after surgery?
Definition
yes, enteral feedings can be started right after surgery - you do not need to wait for bowel sounds or flatus.
Term
How much sterile water is used to flush feeding tubing every 4 hours and before and after intermittent feedings?
Definition
Use 30mL for flushing feeding tubes
Term
Dumping Syndrome
Definition
Dumping syndrome can occur when food with a high proportion of carbohydrates rapidly enters the jejunum - rapid pulse, decreased BP, sweating, weakness and tremors frequently followed by n/v

common with:
-total gastrectomy /gastric bypass -intestinal tube feeding(bypasses stomach)
Term
How often should the Gastric Residual Volume be checked
Definition
Gastric Residual Volume should be checked every 4 hours for the first 48 hours of enteral feedings.
Term
What amount of Gastric Residual Volume is too high?
Definition
GRV of more than 250mL is too high and a promotility agent should be administered
Term
What is the route used to administer Total Parenteral Nutrition?
Definition
TPN is administered via an IV in acentral venous catheter.
Term
What route is used to administer Peripheral Parenteral Nutrition?
Definition
PPN is administered via a short-term IV catheter in a peripheral vein.
Term
What is the difference between PPN and TPN besides the placement of the catheters?
Definition
PPN delivers a lower concentration of dextrose/isotonic vs hypertonic

PPN cannot exceed 10% dextrose and 5% amino acids
Term
What is D10 used for?
Definition
D10 is administered IV for 1 – 2 hrs to protect against rebound hypoglycemia after a patient is removed from TPN

Also used: isotonic dextrose (D5W)
Term
Why do post-op patients need so much protein in their formula?
Definition
Post op patients need lots of protein in their formula to prevent their bodies from using it's own protein stores.
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