Nutritional Assessment Flashcards
Why does screening occur?
- Joint Commission requires hospital and home care organizations to provide nutritional screening for all patients
- based on screening referral to a health professional for a nutritional assessment
How do you find BMI?
- body weight (kg)/ height ^2 (M)
What BMI is considered obese?
BMI >30
Who is BMI applicable to?
limited in people whose muscle mass is greater or lesser than the average person
What is TSF?
Tricep Skinfold Thickness
estimate of total body fat stores
What is MAMC?
Mid Arm Muscle Circumference
estimate of total body skeletal muscle stores
What is a body compostition analysis?
- Measures and compares ratios of various body components
- bioelectrical impedance
- dual energy x-ray AbsorpAometry
- Used mostly in research
What is included in a biochemical evaluation?
- albumin- long term nutritional status (affected by large fluid shifts)
- transferrin- medium term nutritional status
- prealbumin- short term nutritional status
When do you use transferrin in biochemical evaluation?
useful for initial assessment and weekly monitoring
can be affected by iron status– not as accurate when iron is low
When do you use pre-albumin in biochemical evaluation?
- most sensitive of all three proteins to short term changes
- useful for initial assessment and weekly assessment
What are the energy requirements according to a simple nomogram?
- 20-30 kcal/kg/day
- dependent on stress level
- use actual BW unless obese (use adjBW)
What are the energy requirements for non-vented pts?
Mifflin - St. Jeor Equation
What are the energy requirements for ventilated patients?
Penn State University Equation
What is the Estimated Energy Expenditure (EEE)?
= BEE x stress factor + activity factor
What are the protein requirements for the general population?
0.8-1.5 g/kg/day
*use adjBW or ideal accordingly
