Nutrition assessment study guide Flashcards
what is nutrition assessment
-method used to identify individuals at risk for or with existing malnutrition
what can trigger a NA
- nutrition screen
- NA is a much more thorough evaluation of dietary habits and medical history
what is included in an NA
ABCDEF
- anthropometry
- biochemistry
- clinical
- dietary
- energy intake/exercise/functional status
anthropometry
- height
- weight
- BMI
- body comp
biochemistry of NA
- lab assessment
- blood and urine analysis
clinical NA
- medical history
- medications
- therapies
- physical exam
dietary NA
- comprehensive review of current and past intake patterns
- barriers to eating
energy intake/exercise/functional status
evaluation of current and past functional status and current exercise levels and how these relate to energy intake
how to describe whole body comp
- height
- weight
how is height best measure
-standing using a stadiometer
recommended surrgoates of height measurement
- recalled height
- supine length
- knee height or arm span
why is height lost throughout life
-loss of vertebral bone and intervertebral discs
BMI
- underweight
- normal
- overweight
- obesity
- morbidly obese
- extreme obesity
or equal to 40
calculating BMI
weight in Kg over height in m
what is BMI correlated with?
body fat as well as fat free mass and morbidity and mortality
how could BMI be confounded
-abnormal amounts of body water or by muscle mass
the relationship between BMI and body fat varies betweem
- age
- gender
- race
what is the most common assessment of central obesity
-measurement of waist circumference at the level of the iliac crest
what does a central distribution of body fat increase the risk for?
- diabetes
- hypertension
- dyslipidemia
- heart disease
- mortality
most common two compartment body composition variables of interest are
fat mass and fat free mass
FFM
- represents all body tissues that are not fat
- muscle, viscera, bone, water
dual energy x ray absorptiometry
- assesses bone mineral
- used in clinical practice
what can the measurement of skin fold thickness and circumference be used for?
- combined to estimate FFM and FM, which on occasion is done in clinical practice
- no ranges have been developed to demonstrate healthy or non healthy
what can give good insight into a patients usual dietary intake and patterns
-food records and recalls
