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HDL CHOLESTROL

About the test
What is this test done for?
HDL stands for high density lipoprotein, a kind of cholesterol. It is a blood test that measures the amount of HDL levels in the blood. HDL is one of the most important fragment of cholesterol.
Why is it Done?
This is a routine blood test that checks for the amount of HDL present in the blood. It is routinely evaluated along with its other fragments i.e. LDL, TG and total cholesterol. HDL is the beneficial, “good cholesterol”, which removes the excess of cholesterol from tissues and carries it to the liver for its removal.HDL is used to monitor the effectiveness of the treatment for high lipid levels.
When should it be performed?
This test is performed if a patient presents with any of the risk factors for heart disease, such as
  • Smoking
  • Obesity
  • Unhealthy diet
  • Lack of physical exercise
  • Age > 45 years
  • Known hypertensive patient
  • Known diabetic patient
  • Family history of heart disease
  • Pre-existing heart disease or already had a heart attack
  • As a routine test during a health check up
  • As a part of lipid profile, when someone has high levels of cholesterol in the screening test
  • As a routine test for monitoring the therapy given for correcting abnormal lipid profile
How is it done
A blood sample will be collected from a vein in your arm. Twelve hours of fasting is required before conducting the blood test.
Results

The test result is normal, if levels are 40 – 60 mg/dL. It means

  • Less chances of developing heart disease
  • Good response to the therapy for previous unhealthy lipid profile

The test results are high, if levels are above 60 mg/dL. It means

  • Further reduction in chances of developing heart disease
  • Good physical exercise

The test results are low, if levels are below 40 mg/dL. It means

  • High risk of developing heart disease
  • Poor response or no response to the therapy for unhealthy lipid levels
Other Tests
  • LDL
    • It is a routine blood test carried out to evaluate LDL levels of the blood
    • High LDL levels indicate high chances of developing heart disease
  • TG
    • It is a routine blood test carried out to evaluate TG or triglyceride levels of the blood
    • High levels indicate high chances of developing liver disease or uncontrolled diabetes
  • Lipid Profile
    • It is a routine blood test carried out to evaluate complete lipid levels of the blood
    • High LDL, high Total cholesterol along with low HDL levels indicate high chances of developing heart disease
  • Apolipoprotein A & B
    • It is a specialized blood test that evaluates the amount of apolipoprotein levels of the blood
    • Presence of high levels of apolipoproteins is associated with increased risk for heart disease
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