The Friedewald equation for estimating LDL cholesterol is often inaccurate.

“the freeder wal equation is quite literally used to estimate LDL as follows LDL cholesterol is estimated as total cholesterol less HDL cholesterol less triglyceride concentration divided by 5 if you're doing everything in milligrams per deciliter and unfortunately most Labs still do that so when you look at your cholesterol report it'll say ldlc it'll give a number and unless it says direct you can assume they've done the freed to Wal equation which is I've seen that wrong more often than I'm seen it right”