835 Unit 2 Quiz - body weight calculations
calculate the ideal body weight of a 72'' male
105 + (6 x 12) = 177 lbs.
normal BMI
18.5-24.5
pre-obese BMI
25-29.9
obese class I BMI
30-34.9
obese class II BMI
35-39.9
calculate the predicted body weight of a male that is 187.96 cm
50 + (0.91 x height in cm -152.4) =82.4 kg
calculate the predicted body weight for a female that is 63 inches tall
63 x 2.54 = 160 cm 45.5 + (0.91 x (160 cm -152.4)) =52.4 kg
amount of lean body weight in females
75% of total body weight
amount of lean body weight in males
80% of total body weight
underweight BMI
<18.5
overweight BMI
<=25
obese class III BMI
>=40
super obese BMI
>=50
super super obese BMI
>=60
how to calculate lean body weight for obese people
IBW + (IBW x (0.2-0.3)
lean body weight consists of
body cell mass (organs, bones, muscles) extracellular water non-fat connective tissue
maintenance dose depends on
clearance of the drug
Broca's index for calculating ideal body weight
height in cm - x (x=100 in males and 105 in females)
BMI
kg/m^2
what weight should be used to dose water-soluble drugs?
lean body weight or ideal body weight -nondepolarizing muscle relaxants (roc) -narcotics
Ideal body weight calculation
males: 105 lbs for first 60 inches and then add 6 lbs for every inch over females: 100 lbs for first 60 inches and then add 5 pounds for every inch after
predicted body weight (kg)
males: 50 + (0.91 x ht in cm - 152.4) females: 45.5 + (0.91 x ht in cm - 152.4)
calculate the lean body weight of a female that is 65 inches tall
predicted body weight: 65'' = 2.54 x 65 = 165.1 cm 100 + (5x5) = 125 pounds IBW 125/2.2 = 56.8 kg 56.8 + (56.8 x (0.2-0.3)) = 51.1kg
what weight should be use to dose lipid soluble drugs?
total body weight -succinylcholine -dexmetetomidine -neostigmine
lean body weight / adjusted body weight
total body weight minus adipose tissue
loading dose depends on
volume of distribution of the drug
total body weight
what the person actually weighs in kg or pounds
