Quiz 1 Flashcards
Adipose tissue considered an _______
organ
BMI calculations
Weight(kg)/height(m2)
(Weight[lbs}/Height[in2]) X 703
BMI class (ASA)
25-29.9 Overweight 30-34.9 Obese Class I 35-39.9 Obese Class II 40-44.9 Obese Class III/Morbidly Extreme Obese >45 Obese Class IV/Severe Obesity
Lean Body Weight (LBW)
IBW x 1.3
Ideal Body Weight (IBW)
Broca’s Index
- Male = Height(cm) – 100
- Female = Height(cm) – 105
look at slide 7 (obesity)
.
Increased Cardiac Output of ____ for each kg of fat
0.1 L/min
why increased risk htn in obesity
- Increased blood viscosity
- hyperinsulinemia
- increased mineralocorticoids
- sodium reabsorption
- compression of kidneys
- impaired sodium excretion
- RAA activation
In obesity, what in lungs decreased? Increased?
Decreased:
- FRC
- ERV
- VC
- TLC
Increased:
Dead space
Gold standard test for OSA is
polysomnography (PSG)
look at slide 24 (obesity)
.
Obese changes in pharmacologic measures
Increased:
- Vd
- blood volume
- CO
Decreased:
-Total body water
Drugs IBW vs TBW. Examples of TBW?
IBW - low lipophilicity
TBW - high lipophilicity (most of the time)
(digoxin, remifentanil, procainamide)
propofol dosing
Induction - LBW
Maintenance - TBW
Succinylcholine dosing
TBW