nutrition Flashcards
pathway of food
oropharynx (reduces food to boluses) esophagus (no longer voluntary control, delivers to digestive tract) stomach small intestine large intestine
lower esophageal sphincter
prevents reflux of gastric contents into esophagus
liver
blood from the gut flows here and the absorbable products undergo metabolism before being distributed to meet the needs of the body
pancreas
secretes enzymes that digest proteins fats and carbs
gastin
digestion of food
Necessary for normal growth of the lining of the stomach, small intestine, and colon
secretin
Secreted in the duodenum
Causes the pancreas to send out digestive juices
Stimulates the stomach to produce pepsin, an enzyme that digests protein
Stimulates the liver to produce bile
Regulates water homeostasis
Cholecystokinin (CCK)
Secreted in the duodenum
Causes the pancreas release digestive enzyme and for the GB to release bile
Signals the gallbladder to empty
Acts as a hunger suppressant
dietary goals for adults
modify appropriate cardiac risk factors
assess for malnutrition
achieve healthy weight
cardiac risk factors
Dyslipidemia
diabetes
obesity
decreased physical activity
Nutrition Assessment Tools
Obtain relevant laboratory and anthropometric data
Determine what prior attempts to change diet
Identify components of diet
Identify psychosocial issues
BMI
18.5 and under is underweight
25-29 overweight
30 to 35 obese
morbid obesity
> 35 BMI w/ obesity related co-morbidities or BMI >40
obese waist circumference
(F >35in, M>40in)
Protein calorie malnutrition
a highly weighted secondary diagnosis that impacts your patients severity of illness, risk of mortality and other risk adjusted outcomes.
risk for weight loss
dementia, depression, disease, dysphasia, dysgeusia, diarrhea, dentition, dysfunction
Malnutrition
2 or more of the following
Insufficient energy intake
Weight loss
Loss of muscle mass
Loss of subcutaneous fat
Localized or generalized fluid accumulation that may mask weight loss
Diminished functional status as measured by handgrip strength
risk for malnutrition
Unintentional weight loss of ~10% or usual body weight in the preceding 3 months
Body weight <90% of ideal for height
BMI <18.5 kg/m2
Protein Deficiency Physical Findings
Hollowing of the temporal muscles
Wasting of upper arms and thigh muscles
Easily plucked hair
Peripheral edema
Malnutrition results from a combination of causes including
starvation
abnormal assimilation of the diet
stress response to illness
abnormal nutrient metabolism
markers of extent malnutrition
albumin, transferrin, total lymphocyte count
weight loss
Initial weight loss of 5-7 % carries numerous health benefits in the overweight/obese
Goal of dietary therapy is reduce total number of calories consume
low carb diet
Used for weight loss and treatment of epilepsy when medications are not enough
best diet for long term weight loss
low fat diet
33 g of fat for each 1000 kcals
high protein diet
suggest for the obese because it is more filling
may help improve weight maintenance
Adverse effects of Very low calorie diets
Hair loss
Thinning of skin
Coldness
Increased risk for gallstones
Macrobalance Diet difficult to study due to
high drop out rates