A patient's lipid profile is as follows, TG - 200 mg/dL, Total Cholesterol 300 mg/dL, HDL 40 mg/dL. Calculate LDL level in this patient.
Friedwald's equation: Total Cholesterol = HDL+LDL+VLDL Total Cholesterol = HDL+ LDL+ TG/5 (we do not measure VLDL, we measure TG) -LDL= Total cholesterol -HDL- TG/5 (mg/dl) -LDL= Total cholesterol - HDL - TG/2.2 (mmol/L) Total Cholesterol = 300 - 40 - 200/5 = 220 mg/dl
40 mg/dL
100 mg/dL
220 mg/dL
260 mg/dL
JIPMER 2017