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What is cholesterol?

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What is cholesterol? Cholesterol is a waxy, fatlike substance that is naturally present in cell walls or membranes everywhere in the body. Your body uses cholesterol ... – PowerPoint PPT presentation

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Title: What is cholesterol?


1
What is cholesterol?
  • Cholesterol is a waxy, fatlike substance that is
    naturally present in cell walls or membranes
    everywhere in the body. Your body uses
    cholesterol to produce many hormones, vitamin D,
    and the bile acids that help to digest fat. 
  • If you have too much cholesterol in your
    bloodstream, the excess may be deposited in the
    arteries of the heart, which could lead to heart
    disease. 

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2
What causes high cholesterol?
  • Several drugs and diseases can cause high
    cholesterol !!
  • however, for many people, a high-fat diet and
    inherited metabolic factors seem to be the main
    causes. 

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What are the symptoms of high cholesterol?
  • High cholesterol doesnt have any symptoms.
  • The only way to know if you have high cholesterol
    is to have it checked, which can be done with a
    simple blood test, called a fasting lipoprotein
    profile

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How often should I have my cholesterol checked?
  • Government and physician-supported guidelines
    state that healthy adults who are aged 20 years
    or older should have a fasting lipoprotein
    profile done once every 5 years. 

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How is cholesterol checked?
  • You may be asked to fast overnight before the
    test, hence its name. A fasting lipoprotein
    profile measures
  • total cholesterol, LDL ("bad") cholesterol, HDL
    ("good") cholesterol,
  • and triglycerides in your blood. 
  • A cholesterol test can be done without fasting,
    but then only the levels of total cholesterol and
    HDL C ("good") can be used.

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Should I only be concerned with my total chol-
number?
  • Just knowing your total cholesterol isnt
    enough. 
  • Cholesterol is made up of 2 different types
  • HDL C ("good") cholesterol and
  • LDL C ("bad") cholesterol .
  • HDL C is considered good because it helps keep
    LDL C ("bad") from building up in the walls of
    your arteries and causing blockage. 
  • You also need to know your level of triglycerides
    because high triglycerides also increase the risk
    of heart disease, especially in people with
    diabetes.  

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What kinds of problems are
caused by high cholesterol?
  • High cholesterol causes atherosclerosis
    (hardening of the arteries), which can lead to
  • blocked coronary arteries, manifested by chest
    pain (angina) or a heart attack. Other serious
    problems, as
  • blocked arteries to the brain, causing
    threatened stroke (transient ischemic attack) and
  • blocked arteries in the legs, causing pain,
    limping, and possibly even limb loss, are
    possible

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What are the uncontrollable andcontrollable and
risk factors for high cholesterol ?!
  • The risk factors you cant control
  • your age (for men, 45 years or older for
    women, 55 years or older)
  • your family history of early heart disease
    (for men, father or brother affected before age
    55 years for
  • women, mother or sister affected before age
    65 years). 
  • The risk factors you can control are
  • lowering high blood cholesterol
  • which is high total cholesterol and high
    LDL C ("bad") raising HDL C
    ("good") cholesterol.

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  • quitting smoking
  • controlling high blood pressure
  • controlling diabetes
  • losing weight if overweight/obese
  • and keeping physically active. 
  • If you have diabetes, your risk of heart
    disease is high. To reduce your risk,
  • you will need to lower your cholesterol under
    the supervision of your doctor.

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What the Numbers Mean
  • Cholesterol is measured in milligrams per
    deciliters (mg/dL) of blood..
  • Desirable Less than 200 mg/dL
  • Borderline High Risk 200-239 mg/dL
  • High Risk 240 mg/dL and above

However, the risk of cardiovascular disease
associated with these levels of chol- and
trig- will depend upon the presence or
absence of other risk factors, such as the
presence of known cardiovascular disease (heart
attack, stroke), hypertension , age positive
family history diabetes sex smoking
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  • Your HDL cholesterol level will fall into 1 of 3
    categories
  • High (Desirable) 60 mg/dL and above
  • Acceptable 40-59 mg/dL
  • Low 40 mg/dL and less
  • Triglycerides
  • A high level of trig- may be a sign of a
    lipoprotein problem that contributes to heart
    disease.
  • Your triglyceride level will fall into 1 of 4
    categories
  • Normal Less than 150 mg/dL
  • Borderline High 150-199 mg/dL
  • High 200-499 mg/dL
  • Very High 500 mg/dL and above

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  • LDL cholesterol is considered the bad
    cholesterol. Your risk of heart disease goes up
  • if you have a high level of LDL cholesterol in
  • your blood. Your
  • LDL chole- level will fall into 1of 5
    categories
  • Optimal Less than 100 mg/dL
  • Near Optimal/Above Optimal 100-129mg/dl
  • Borderline High 130-159 mg/dL
  • High 160-189 mg/dL
  • Very High 190 mg/dL and above

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13
What can I do to prevent high cholesterol?
  • The primary prevention of high cholesterol is to
    adopt a healthy lifestyle.
  • This lifestyle should include 30-60 minutes a day
    of exercise on most or all days of the week,
  • a diet low in saturated fat and cholesterol,
  • and not smoking.

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When would a doctor prescribe a medication to
lower cholesterol?
  • If you have high cholesterol, the main goal of a
    treatment program is to lower your LDL ("bad")
    cholesterol level. There are 2 main ways to lower
    your LDL cholesterol level
  • 1-lifestyle changes and 2- drug
    treatment.
  • Lifestyle changes include a
  • low-saturated fat,
  • low-cholesterol diet
  • exercise and
  • weight loss if you are overweight. 

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  • If following a healthy diet, exercising, and
    losing weight dont lower your risk for heart
    disease,
  • then your doctor might prescribe a medication to
    help lower your cholesterol
  • Even if your doctor does prescribe a medication
  • you must still follow
  • your healthy diet,
  • be more physically active,
  • stop cigarette smoking if you smoke,
  • and control your other risk factors
  • (e.g., high blood pressure, diabetes) for
    heart disease.

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16
  • Thank You
  • Best Regard's
  • Iz Clinic

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