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calculate total cholesterol formula

New cholesterol calculation may avoid need to fast before testing, study suggests

The newer method for calculating LDL, or low-density lipoprotein, was developed by Seth Martin, M.D. M.H.S., and colleagues at Johns Hopkins in 2013. Other researchers in the U.S. and abroad have confirmed its greater accuracy, and the newer method has been adopted by at least one major U.S. national diagnostic company this year.

"Although the new LDL calculation method is a bit more complex, the beauty is that it can be performed using information that is already collected in the blood sample for the standard lipid profile and automated in the lab's computer system to give a more accurate result," according to Martin, co-director of the Advanced Lipid Disorders Center and assistant professor of medicine at the Johns Hopkins University School of Medicine. "Since nonfasting samples are now accurate, it's more convenient for patients because they can come in anytime and don't need to return for a second appointment if they have eaten."

For the study, the researchers compared the accuracy of the new LDL calculation method with the Friedewald method, developed in the late 1970s when patients fasted or did not fast.

How to calculate total Cholesterol. Is there a formulae to calculate total Cholesterol from LDL and HDL?

What if my HDL is very high (running 100Km a week) but LDL marginal, would the high HDL number drag the total cholesteral higher than guideline?


The formula is from Friedewald. Total cholesterol minus (triglycerides divided by 5) = LDL. HDL has always been measured directly and as direct measurement of LDL has been widely available for more than 5 years I no longer use the Friedewald calculation.


The formula is from Friedewald. Total cholesterol minus (triglycerides divided by 5) = LDL. HDL has always been measured directly and as direct measurement of LDL has been widely available for more than 5 years I no longer use the Friedewald calculation.

Why are there different ways of calculating your Total Cholesterol?

My sister says your total cholesterol should be your HDL + LDL. However, on my last blood test, my HDL + LDL was 10 points lower than my total cholesterol. So, I found some web sites that have the following formula:

HDL + LDL + (Triglyceride


Technically, there is no pure cholesterol in your bloodstream. Cholesterol is transported by lipoproteins. LDL (low-density lipoproteins) and HDL (high-density lipoprotiens) are the lipoprotiens used to transport cholesterol.

Tests can


well, I think that one day some scientist discovered that if you get bored enough you can find different ways to do things. Like the Total Cholesterol. What it is, is that you take the common ingredience in all food, then add it together. Everything


Technically, there is no pure cholesterol in your bloodstream. Cholesterol is transported by lipoproteins. LDL (low-density lipoproteins) and HDL (high-density lipoprotiens) are the lipoprotiens used to transport cholesterol.

Tests can