BMI Exam Study Notes
What does BMI stand for? What does it calculate?
What does BMI take into consideration in its calculation?
What are three limitations of the BMI calculation? Another
way of saying this is what are three things BMI does not ta
Clinical signs of nutritional deficiency Notes
in mountainous areas and far from sea places Goiter is a
reliable sign of iodine deficiency.
Joins & bones
Help detect signs of vitamin D deficiency (Rickets) &
vitamin C deficiency (Scurvy)
Body Mass Index Notes
The body mass index (BMI) is a statistical measurement
using a persons height and weight to determine their
healthy body weight.
BMI is controversial, because it does not actually measure a
persons percentage body fat.
It just displa
ASSESSMENT OF NUTRITIONAL STATUS Notes
The nutritional status of an individual is often the result
of many inter-related factors.
It is influenced by food intake, quantity & quality, &
The spectrum of nutritional status spread from obesit
DIETARY ASSESSMENT Notes
Nutritional intake of humans is assessed by five
different methods. These are:
24 hours dietary recall
Food frequency questionnaire
Dietary history since early life
Food dairy technique
Observed food consumption
24 Hours Dietary R
Interpretation of WHR Notes
High risk WHR= >0.80 for females & >0.95 for males i.e.
waist measurement >80% of hip measurement for
women and >95% for men indicates central (upper body)
obesity and is considered high risk for diabetes & CVS
Direct Methods of Nutritional Assessment Notes
These are summarized as ABCD
Biochemical, laboratory methods
Dietary evaluation methods
Indirect Methods of Nutritional Assessment
These include three categories:
Improving BMI Notes
There are lots of things BMI does not account for, however,
recently there have been variations implemented for children
and for non-North Americans.
This last variation was adopted by the World Health
Organization (WHO) and consequent
International BMI Categories Notes
Unfortunately our world is one of have and have not and
consequently the WHO has added the categories of
Starvation to anyone who has a BMI under 15 and
morbidly obese to anyone who has a BMI over 40.
While BMI is fast a
Measurements for adults Notes
The subject stands erect & bare footed on a stadiometer
with a movable head piece. The head piece is leveled
with skull vault & height is recorded to the nearest 0.5
Use a regularly calibrated e
Healthy People Notes
1979-The Surgeon Generals Report on Health Promotion
and Disease Prevention
1980- Promoting Health/Preventing Disease: Objectives for
1990-Healthy People 2000
DIETARY HISTORY Notes
It is an accurate method for assessing the nutritional
The information should be collected by a trained
Details about usual intake, types, amount, frequency &
timing needs to be obtained.
Cross-checking to verify
Anthropometric Methods Notes
Anthropometry is the measurement of body height,
weight & proportions.
It is an essential component of clinical examination of
infants, children & pregnant women.
It is used to evaluate both under & over nutrition.