about cholesterol levels?

my good cholesterol is 93. my LDL is 132, my triglycerides are117. my total cholesterol is 248. How do they figure the total?

One comment

  • toadhopper422

    HDL, LDL, Triglycerides and Cholesterol are all different things that they are testing.

    The American Heart Association provides a set of guidelines for total (fasting) blood cholesterol levels and risk for heart disease[5]:

    Level mg/dL Level mmol/L Interpretation
    <200 <5.2 Desirable level corresponding to lower risk for heart disease
    200-239 5.2-6.2 Borderline high risk
    >240 >6.2 High risk

    However, as today’s testing methods determine LDL ("bad") and HDL ("good") cholesterol separately, this simplistic view has become somewhat outdated. The desirable LDL level is considered to be less than 100 mg/dL (2.6 mmol/L), although a newer target of <70 mg/dL can be considered in higher risk individuals based on some of the above-mentioned trials. A ratio of total cholesterol to HDL —another useful measure— of far less than 5:1 is thought to be healthier. Of note, typical LDL values for children before fatty streaks begin to develop is 35 mg/dL.

    Patients should be aware that most testing methods for LDL do not actually measure LDL in their blood, much less particle size. For cost reasons, LDL values have long been estimated using the Friedewald formula: [total cholesterol] − [total HDL] − 20% of the triglyceride value = estimated LDL.

    Increasing clinical evidence has strongly supported the greater predictive value of more-sophisticated testing that directly measures both LDL and HDL particle concentrations and size, as opposed to the more usual estimates/measures of the total cholesterol carried within LDL particles or the total HDL concentration.

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