Week 3 Obesity Flashcards
T/F: Adipose is considered an organ.
TRUE
Obesity causes a __ to __ greater chance of death from all causes and is the __ leading cause of preventable death.
-10
-50
2nd
How many adults have a BMI over 30?
34%
How many pediatric children are over weight?
Overweight 20-30%
Obese 15%
Very obese 4%
How do you calculate BMI?
- Weight (kg) / height (m2)
- Weight (lbs) / Height (in2) x 703
List the classes of the BMI scale:
- Overweight = 25 - 29.9
- Obese Class 1 = 30 - 34.9
- Obese Class 2 = 35 - 39.9
- Obese Class 3 = 40 -44.5 (Morbid)
- Obese Class 4 = . 45 (Severe)
How do you get Ideal Body Weight (Broca’s Index)?
- Male = Height (cm) - 100
- Female = Height (cm) - 105
How do you get Lean Body Weight?
- LBW = IBW x 1.3
What type of effect will fat have upon the heart?
- Increase metabolic demand
How much will cardiac output have to increase for every kg of fat?
- 0.1L/minute
How much neovascularization will occur for every 13.5 kg of fat?
- 25 miles
T/F: CAD is an independent factor with obesity.
TRUE
Fat will have what increase on the heart?
- Increase
>cardiac output
>O2 demand
>CO2 production
What heart diseases will correlate with to much fat?
- Cardiomegaly
- Atrial and biventricular dilatation
- Hypertrophy
What F/V Loop Pattern will a obese person have?
-Restrictive Pattern
What function will be decreased in lung inflation?
- FRC
- ERV
- VC
- TLC
What function will be increased in lung inflation?
- Dead Space
What function will NOT be changed in lung inflation?
- RV
- CC
- FVC
- FEV1
How many obese people have OSA?
- 5%
What is Pickwikian Syndrome
-Obese Hypoventilation
What S/S are involved with Pickwikian Syndrome?
- Inappropriate and sudden somnolence
- OSA
- Hypoxia
- Hypercapnia
- Cannot function throughout the day (fall asleep)
How can Pickwikian Syndrome lead to right heart failure?
Will cause hypoxic pumonary vasoconstriction leading to pulmonary HTN called Cor Pulmonale
Obesity will have what effects on GI?
- GERD
- Gallsontes
- Pancreatitis
- Fatty liver disease (3% develop cirrhosis)
Obesity will have what effect on DM?
- 80% of NIDDM pats are obese
Obesity will have what effect on Ortho?
- Osteoarthritis from mechanical stree
The obese patient will have what altered body composition and function?
- Increased Vd
- Increased Blood Volume
- Decreased Total water volume
- alteration of protein binding and lipophilicity
If a drug has a low lipophilicity what type of weight measurement would you use?
IBW
If a drug has high lipophilicity type what type of weight measurment would you use?
TBW
What qeustion would be asked in preop on an obese patient?
- Med Hx
- Labs
- Cardiac
- Resp
- Airway
- Bariatric
What equipment should be checked in the room prior to patient getting there?
- Table weight and size
- Warming devices
- A- Line
- medication
What measurement would be used on a patient to get EBV?
45 - 55 mL/Kg
What type of complication will be seen on patient days later?
- OSA effects - 2-3 days later
- Thromboembolism
