Nutritional Assessment Flashcards
How do you calculate caloric need
3 components of total energy expenditure:
1) basal energy expenditure =55-65% of total calories
2) thermal effect of feeding = 10% of calories
3) activity energy expenditure = 25-33% of calories
In a sedentary hospitalized patient, how many kcal/kg of body weight will maintain weight?
30-35 kcal/kg of body weight will maintain weight
*idk what this means but it was underlined so maybe know it lol
In an acutely or severely ill patient (trauma, burn), how many kcal/kg of body weight will maintain weight?
35-40 kcal/kg
What are the risk factors that contribute to malnutrition and obesity?
- Minority populations are at risk (76% African Americans, 80% of Mexican Americans- overweight or obese)
- malnutrition is related to specific populations: older people who live alone, chronically ill patients, adolescents who eat and diet erratically, cancer patients undergoing chemotherapeutic or radiation protocols or other nutrient-drug interactions, alcoholics, homelessness, low SES
- nutritional deficits: anemia
- older adults (DETERMINE acronym)
Obesity vs. Overweight BMI?
obesity:: BMI>30; waist circumference >40” in men; >35” in women
overweight : BMI 25-29
What is the biggest factor related to obesity?
lifestyle
1% = neuroendocrine cases (rare)
Older adults should be screened for nutritional status using what acronym?
DETERMINE Disease Eating poorly Tooth loss/mouth pain Economic hardship Reduced social contract Multiple medications Involuntary weight loss Need for assistance with self-care Elderly years (>80)
Tetracyclines affect what nutrients?
Ca, Mg, Fe, Vitamin B12
Neomycin, kanamycin affect what nutrients?
fat-soluble vitamins, B12
Sulfasalazine affect what nutrients?
folate
Anticonvulsants like phenobarbital and phenytoin affect what nutrients?
Ca, VitD, folate, niacin
Hypolipidemics like cholestryramine and colestipol affect what nutrients?
fat and fat-soluble vitamins
Cytotoxic agents such as methotrexate affect what nutrients?
folate
Laxatives like mineral oil affect what nutrients?
water, electrolytes, fat and fat-soluble vitamins
Antituberculotics like isoniozid affect what nutrients?
Pyridoxine (B6) and Niacin (B3)
Anticoagulants like warfarin affect what nutrients?
vitamin K
Diuretics like thiazides + furosemide affect what nutrients?
K+, Mg, Ca, Zn
Lithium and amiodarone affect what nutrients?
iodine
What weight loss is considered significant?
unintentional weight loss of 5% over 6 months
OR
10% over one year
What is the formula to calculate %weight change?
%weight chain = [(usual weight- current weight)/ usual weight] x 100
What could be some reasons/symptoms pointing to decreased caloric intake?
anorexia, early satiety, difficulty chewing/swallowing, inability to feed or obtain food, social isolation/depression
What could be some reasons/symptoms pointing towards malabsorption or maldigestion?
diarrhea, fatty malodorous stools, changes in bowel habits
What could be some signs pointing to impaired metabolism or increased requirements?
fever, pregnancy, chronic dz, etc.
What could lead to increased loss/excretion in a patient?
draining fistula or open wound, diarrhea, excessive vomiting
what does tricep skinfold thickness assess?
subcutaneous fat; approx 50% of body fat is subq
Rapid weight gain vs. weight loss is more likely related to what?
weight gain - fluid retention
weight loss - tissue loss
A patient presents with dry and scaly, cellophane appearing skin. What deficiency does this point to?
Protein
A patient presents with flaking dermatitis on their skin. What deficiency does this point to?
Zinc