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103 Cards in this Set

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  • Back
How many obese people are in the USA?
1/3 of adults, over 72 mil, 33.3% of men and 35.3 women, black and hispanic women more likely to be obese
Women obese statistics
60+ women 61% black women obese, adults 40-59 likely to be obese more that hyounger people
What are healthy people 2010 objective as far as obesity?
reduce adluts down to 15% who are obese and increase proportion of adults who are healthy weight 60%
For mass majority of childrne who are obese they take this weight into adulthood
true
Obesity is associated with what diseases?
hypertension, hyperlipidemia, CAD, gallbladder dx, sleep apnea, certain cancers, storke and type 2 diabetes, every unit increase of BMI increased 12% risk of diabetes
BMI 25.5-29.9% had increased risk of death at age of 50 overweight and obese puts one at risk for increased death
true
What good things does weight loss improve?
b/p glycemic control, lipid profiles, lowers LDL, lower tri, raises HDL and lowers total cholesterol
What is goal for health with weight loss?
reduction of 10% over 6 months - this will improve insulin resistance, lipid profile and b/p
Waist circumference non asian males
< 37 OK, => 37-39 increased risk, high risk > 40
Waist circumference non asian males
< 32 OK, increased risk 32-34, high risk => 35
What does abdominal fat do?
think about this as an endocrine organ: secretes hormones, enzymes, cytokines, and complement factors which play a role in appietite , insulin resistance and immune functions - very bad
chocolate and carbohydrates run in same pathway as cocaine as far as addictive properties
true
Resting metabolic rate due to what
Free fat mass - muscle requires more energy than fat - need to lift weights, age: muscle mass decreases with age - if we weight train this would not happen) 3: sex - males have more muscle mass more than females, familial effect accounts for 41% of variance of RMR if one parents obese and 80% of both parents
HOw does physical activity relate to body weight gain with age?
the more active you are the less weight you gain
Physical actiivty positive predictor of dieting success short and long term
true
What is key to weight loss?
not specific diet, but adherance to a program that works for you
How to diet
Portions make a difference, need to reduce fat and need to reduce carbohydrates (chips, cakes, cookies, need to reduce 500-1000 calories a day - eat less or exercise more - the only way to loose weight - need to be hungry to lose weight
Name meds approved for weight loss?
orlistat, meridia, phentermine, Off label: topamax, glocophage, prozac, welbutrin, acrabose, in the works: leptic, cannibinoid 1 receptor blockade & gherline
When are surgical interventions OK for weight loss?
NIH apporved for morbid obesity BMI >35 with 2 or more co-morbid conditions
What is risk of gastric bypass?
40% develop complications vitamin dfeicience, bacterial growth and hernias - recently shown 30% reduction in death
Use motivational interviewing with obesity
No judgemental attitudes with obese individuals, they know they are obese - find out their goals don't blame everything on their weight - they feel bad anyway. Let me know BMI and ask what they think about it?
The Body mass index reflects
total body weight in relation to height - BMI is calcuated by takign the body weigh tin Kgs divided by height in meters squared
When counseling patients about weight which statement is most accurate?
belly fat is the most dangerous type of fat to your health - abdominal fat is metabolically active
An adult BMI of ____ is considered obese
30 Normal BMI 18-24.9, overweight 25-29.9, Obese 30+
A reduction of how many calories a day is necessary to lose 1 pound of weight weekly?
500
What are reccommended testing ages for lipids and lipoprotiensby NCEP?
beginning at age 20 and every 5 years thereafter (US Task force does not recoommend until 35 for men and 45 for women unless high risk for CAD then at age 20)
Why test for lipids early?
1.Early testing gives the individual the opportunity to begin primary prevention!
2.Identify early risk factors that are modifiable!
3.Increase awareness of personal risk for development of premature CHD even if the clinical disease could be decades away. (Now this is an interesting concept given that most in their 20s still feel very invulnerable to any ill of the world).
4.Individuals who have cholesterol levels in the upper quartile for the population are definitely at higher long term risk and life habit intervention to control risk factors is fundamental
What labs need to be drawn for lipid panel?
total cholesterol, low-density lipoprotein (LDL), high-density lipoprotein (HDL) and triglyceride level
What are LDL's
Bad cholesterol the major type of lipoproteins that carry cholesterol in the bloodstream to the body. These are the type that can lead to a buildup of cholesterol in the arteries and lead to heart disease. LDL correlates positively with arterial disease. Most guidelines concentrate on target ranges for LDL
What are HDL's
Good cholesterol. These particles carry cholesterol back to the liver to remove it from the body. Higher levels of HDL are considered good. They transport cholesterol away from cells. The higher the plasma levels of HDL, the lower the atherosclerosis risk. HDL can be raised by exercise
What are triglycerides?
These are the chemical form in which most fat exists in food as well as in the body. They are derived from fats eaten in foods or are made in the body from other energy sources like carbohydrates. Calories ingested in a meal and not used immediately by tissues are converted to triglycerides and transported to fat cells to be stored. Hormones regulate the release of triglycerides from fat tissue so they meet the body's needs for energy between meals. Not cardiovascular risk factor, but are markers for increased risk. > 1000 risk for pancreatitis, > 500 problematic & needs to be treated
How to take cholesterol levels?
fasting 10-12 hours, can have water, if do not fast affects triglyceride levels and then cannot calculate LDL
How to calculate LDL?
LDL = total cholesterol - HDL - (triglycerides/5).
How to read total cholesterol readings?
A total that is less than 200mg/dl is desirable, 200-239 mg/dl is borderline high, and over 240 mg/dl is high
How to categorize risk with cholesterol levels
High risk is defined as a >20% chance of CHD in the next 10 years.
Moderate risk is defined as 10-20 % chance of CHD in the next 10 years
Low risk is defined as less than 10% chance of CHD in the next 10 years.
What are risk factors for CHD?
Age > 45 for men > 55 women Hypertension >140/90 or on meds, low HDL < 40, family hs of CHD, smoker
What foods are good to reduce cholesterol?
•Eat more fish, chicken and turkey, reduce frying, reduce foods with fat - bacon, sausage or hamburger (cook drain and rinse), reduce meals with meat, no more than 2-3 eggs weekly, lower fat conent in milk, olive oil best, avoid palm and coconut oils, avoid hydrogenated oils or lard, low fat cheese - mozarella or swiss,
What is included in liver function tests?
Bilirubin, total & direct or conjugated, ALT, AST & Alakline phsphatase, GGT
What do the transaminiase or ALT & AST look for?
liver function at cells of liver
What do the Cannicular alkaline phosphatase or GGT look for?
gving us indication if problem of billiary ducts
What is bilirubin?
breakdown product of RBC''s, bound to albumin for trasnfer to liver. Conjugated is water soluable & excreted in bile & urine
How to look at bili level?
Total: 0.3-1.0 mg/dL elevated in hepatic disease or hemolytic disease states - when eleveated measure direct bili. Direct: greater than or equal to 0.4 mg/dL elevated in hepatic or biliary disease - water soluble will be seen in urine - dark tea colored urine
Why would you see unconjugated bilirubin?
overproduction of bilirubin or hemolysis, decreased uptake of bilirubin or decreased conjucation
Why would you see increase in direct or conjugated bilirubin?
impaired excretion of bile or biliiary obstruction
When would ALT be elevated?
with damage to liver not sensitive for biliiary obstruction, more specific for liver injury than AST as AST can be found in other tissues. Range 10-35 u/L - higher in infants
Where is AST found?
liver, striated muscle, heart, kidney, pancreas, spleen & lung
When would AST be elevated?
alchol liver damage high AST than ALT
Range: 20-48 m/L 2-3 x higer in infants
What disease process when see both increase of ALT & AST?
hepatitis (viral - 10x increase), cirrhosis, tylenol overdose (even higher than hepatitis), alcholic liver disease, mono
What disease process when see increase in alkaline phosphatase?
sensitive for cholestasis, biliary obstruction, cirrhosis, modest increase in viral hepatitis, 10 fold incrase with carconoma of head of pancreas, hyperthyroidism, hyperparthryoidism, osteogenic sarcoma, limited specficity - wide tissue distribution especially bone 50-120 u/L, high in infants and during growth spurts d/t bone growth, after bone growth stopped ALT mostly liver orgin
What is GGT?
biliary excretory enzymne, - may be helpful for obstructive jaundice and cholestatis and pancretitis
What are first line meds for cholesterol lowering?
statins or HMG-Co A reductase inhibitors. These reduce LDL
What are risks of taking statins?
liver problems - processes through liver - baseline AST and perodic AST, can cause muscle pain baseline CK & CPK levels
When shoudl statins be taken?
At bedtime - this is when cholesterol synthesis is highest
What is 2nd level choice for lowering cholesterol?
Bile acid sequesterants - cause GI complaints
What is best med to help increase HDL?
Nicotinic Acid or fibric acid derivatives - increases flushing take with aspirin to decrease flusing
What is the goal of cholesterol lowering drugs?
Lower LDL
When should you refer a patient for high cholesterol to lipid specialist?
LDL > 250, HDL < 20, Triglycerides > 500 in non diabetic, CAD under 30, first treat then send
Know Lipid meds
go over lipid cards
What you need to know for obesity and lipid test.
BMI (what BMI tells you and what it does not tell you), waist circumference, know gastric bypass banding read case study who gets it, why, how to treat afterwards, diet, vitamin issues, anemia & meds, protien, lipids who to screen, when to screen why to screen, atpIII - know what is in this, what target first on lipid panel (LDL) then triglycerides, what drugs hit LDL and what drugs hit triglycerides, what are optional goals vs optimal goals (LDL) - look at test question wording carefully, waht to do if elevated liver enzymes, what shouldn't be doing if elevated liver enzymes (case study), elevated CK know levels how high go, know statins side effects how to give, how to stop, rule of 6,
How is BMI calculated?
dividing his or her weight in kilograms by the height in meters squared or weight in lbs, / height in inches squared x 703
What BMI is considered overweight?
25 greater than 30 are obese, greater than 35 are severely obese, greater than 40 are morbid obese
What does BMI not tell you?
muscle mass vs fat, bone mass. difficult in athletes, children and older adutls
What factors influence obesity?
RMR, excessive calories, lack of exercise, genetics, parental influence (having an obese mother doubles risk fo child beig obese), medical conditions, lack of sleep & increased stress, large portioni sizes
What drugs are used to combat obesity?
Orlistat (inhibits pancreatic enzyme that reduced fat absorption) sibutramine (appetite suppressant)
What are health risks of obesity?
type 2 diabetes, CHD, dyslipidemia, metaboic syndrome (excessive fat in stomach), sleep apnea, gallbladder disease, increased risk of breast, colon, kidney and esophagus CA, arthritis, impairment of immune system
What are o;ptional LDL goals in very high risk populations?
70 or less, less than 100 in high risk populations
How is HDL good?
when free cholesterol binds with HDL then it is taken to liver and broken down and excreted in bile, low levels of HDL independent risk factor of CVD, > 60 makes it a negative risk factor, exercise can increase HDL
How do dietary fats contribute to high cholesterol?
saturated fats contribute to hyperlipidemia, slows down breakdown of LDL receptors which increases concentration in blood, animal products contain lots of dietary cholesterol
What foods contain saturated fats that increase cholesterol?
palmitic acid, meats, eggs and dairy products, palm and coconut oils found in commercially baked goods
Which foods contain monounsaturated fats?
peanuts, olives, avocados, & almonds - mono unsaturated fats not not lower or raise cholesterol
Which foods contain polyunsaturated fats?
vegetable oils, and fish oils
What are worst fats?
Trans fats found in fried foods, margarine, commercial baked goods
What is metabolic syndrome?
progressive insulin resistance that is affected by abdominal fat
Which lipid level is affected by dietary fats w/i last 12 hours
Triglycerides and this level is used ot determine LDL so patient must be fasting to obtain correct LDL
What is the LDL goal level for the moderate risk group for NCEP ATP III
2 or more risk factors, 130 or less
What is LDL goal for low risk CVD?
patients have zero or one major risk factors 160 or less
What are the risk factors included when using Framington Point scoring?
Diabetes, stroke or know cerebrovascular disease, peripheal vasuclar disedase, abdominal aortic aneurysm
How does statin therapy work?
Higher dose show works better to decrease LDL, usually increase dose to max dose before trying something else, Rule of 6 when increaseing dose will lower LDL 6%
Why take a baseline of creatine kinase (CK) when startign on statins?
can cause muscle pain, CK can rise up to 10 times above normal and this is OK as long as pt has no symptoms
What are statin drugs?
Lovastantin (Mevacor), Pravastatin (Pravachol), Simvastatin (Zocor), Fluvastatin (Lescol), Antrovastatin (Lipitor), Rosuvastatin (Crestor)
Name the cholesteorl absorption inhibitors?
Ezetimibe (Zetia) combo drug statint iwth ezetimibe (Vyorin)
Name Fibric Acids?
Genfibrozil (Lopid), Fenofibrite (Tricor)
Name Bile Acid Sequestrants
Cholestyramine, Colstipol, colesevelam - bind with bile so not absorbed & slows down gastric motility, causes GI upset and constipation
Drugs that lowers HDL and increases LDL
anabolic steroids, progestins, corticosteroids
What are normal LDL ?
optimal: < 100
near optimal 100-129
borderline high 130-159
high 160 -189
very high 190
What are normal HDL values?
low < 40
high >60 (high is better)
What are normal total cholesterol levels?
< 200 desireable
200-240 borderline
> 240 high
What are normal triglyceride levels?
< 150 normal
150-199 borderline
200-499 high
> 500 very high
What drugs can be added to statins to decrease triglycerides?
fibric salts or nicotinic acids
What are normal ALT values?
normal 10-34
What are normal AST values?
9-36
What are normal Alk Phosphatase values?
53-141
What is the critera for diagnosis of metaboic syndrome?
3 or more of the following:
•Blood pressure equal to or higher than 130/85 mmHg

•Fasting blood sugar (glucose) equal to or higher than 100 mg/dL

•Large waist circumference (length around the waist):

•Men - 40 inches or more

•Women - 35 inches or more


•Low HDL cholesterol:

•Men - under 40 mg/dL

•Women - under 50 mg/dL


•Triglycerides equal to or higher than 150 mg/dL
When should statins not be used?
Statins are not recommended with elevated liver enzymes due to liver toxicity.
What diseases does obesity predispose one for?
type 2 DM, heart disease, sleep apnea, gallbladder disease, and certain cancers
What does the Framingham scale look at?
Age
Total cholesterol
B/P
Smoker/Non-smoker
How to calculate BMI?
: determined by weight/height² Waist measurement is significant to predict a health risk
What to test initially and every 2 months x 2 if prescribing statin?
LFT's - then take q6 months
What is important to know besides BMI?
hip/waist ratio
How high can CK (creatine kinase) go before dangerous with statin therapy?
10 times normal, Crestor is considered the harshest/worst of the statins for causing myopathies
What else coudl cuase muscle pain than statin drugs?
what labs would you draw when considering the myalgia besides a CK...think.....hard on this..........it is very in vogue right now......

If I was concerned about Fibromyalgia I would get CBC with sed rate, and test for rheumatoid factor.

I would also want to do the tender point location exam for fibromyalgia
Why avoid grapefruit juice when on statins?
the chemicals in grapefruit juice can inhibit CYP3A4- causing a slowing of the inactivation of statins and these effects can persist for up to 3 days.
What statins should not be taken with grapefruit juice?
Lipitor (atorvastatin), Mevacor (lovastatin), and Zocor (simvastatin)