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About the test
What is this test done for?
The cholesterol (high density lipoprotein) HDL direct test is done to determine levels of good fraction of cholesterol in blood.
Why is it Done?
It is done as a routine check up as part of the lipid profile. • To determine the response to treatment given to increase HDL cholesterol
When should it be performed?

The test should be performed when someone has one or more risk factors for heart disease.  The risk factors include:

  • Cigarette smoking
  • Being overweight, obese
  • Unhealthy diet
  • Sedentary lifestyle
  • 45 years or older men, 55 years or older women
  • Hypertension
  • Family history of premature heart disease.
  • Diabetes or pre diabetes.
How is it done
A blood sample will be collected from a vein in your arm. For doing HDL direct cholesterol, 12 hours of overnight fasting is required prior to testing.
  • If the level is below 40mg/dL, then the person is at high risk of heart disease.
  • If levels are in the range of 40 to 45mg/dL then it is borderline, an average risk of heart disease.
  • If the levels are above 45mg/dL, negligible risk of heart disease exists.
Other Tests
  • LDL cholesterol and Lipid profile are necessary accompaniments to rule out the risk of heart disease.
  • Doing an ECG might be helpful too.
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