W26-L12: BMI and protein-enery malnutrition

Question 1

What is BMI?

Answer 1

Weight in kg / (height in meters) ^2

Question 2

What are the BMI ranges?

Answer 2

Underweight (<18.5)
Normal (18.5-25)
Overweight (25-30)

Question 3

What is protein-energy malnutrition?

Answer 3

inadequate intake of macronutrients, proteins will not used for structures until there is enough energy for the brain

Question 4

What are the two types of protein-energy malnutrition?

Answer 4

kwashiorkor (protein lack) and marasmus.

Question 5

What is protein sparing?

Answer 5

protein will be used structurally when enough energy is provided by carbohydrate and fat for protein to be used structurally and not for gluconeogenesis.

Question 6

What is the cause of kwashiorkor and marasmus?

Answer 6

kwashiorkor = lack of protein

marasmus = lack of any food

Question 7

How do you re-feed after starvation?

Answer 7

Small quantities to allow gut to regenerate

Question 8

What is cachexia?

Answer 8

An extreme example of the

loss of muscular and adipose tissue in terminal illness. The condition is caused in part by high levels of TNF alpha

Question 9

Can cachexia be resolved by over-nutrition?

Answer 9

No as TNF-a causes immune system-mediated destruction of tissue