... No the formula is wrong the correct one is
Total cholesterol minus HDL minus the (Triglycerides divided by 5)
So here is an example Chol.=174 Trig= 296 HDL= 54 LDL=60.8
174 - 54=120
296. divided by 5=59.2
120
-59.2
60.8 (6 replies)

... e, five minutes later take another sample. Then send these two samples to the very same testing lab and they could come back with the differences you noted above for your mothers TC. ... (6 replies)

... Do you know what is the standard way of calculating total cholesterol level? ... (6 replies)

... The Friedewald Formula is normaly used to estimate LDL cholesterol. The only lipids that are directly read are TC, TG and HDL. The formal uses the following calculation:
Estimation of LDL Cholesterol = Total Cholesterol – HDL Cholesterol – VLDL Cholesterol*
* Estimation of VLDL Cholesterol = Trigs/5 (Trigs/2.2 for mmol/L) (6 replies)

... Anyway thanks for the feedback. I agree it's no good asking things that are already plenty there on the web. ... (6 replies)

... There SHOULD be no difference in the cholesterol measurement from lab to lab. ... (6 replies)

... I was confused when I found out how Total Cholesterol is calculated. ... (6 replies)

... I don't think it is correct that HDL and LDL are the same, you might want to go over the numbers again. LDL is typically much higher than HDL. Those numbers don't really add up properly. Call them again to get the numbers. In the US, at least, you can ask for a copy of the report as well; hopefully, you can do that there as well so you have a hard copy.
The basic... (1 replies)

... What is your HDL (good cholesterol)? Your numbers are similar to my untreated numbers and I'm age 39. Do you exercise? I do and still have those type numbers, untreated. First, you might try diet and exercise modifications and then retest. Also, you can add Niacin (Vitamin B-3) as you may get an increase in HDL and a reduction in LDL/Total. Plus, you can try a regimen of... (22 replies)

... the trick is to lower total cholesterol also and boost HDL. ... (24 replies)

... At last calculation mine was 67. I believe there may be something to the reversal just from my own experiences. ... (8 replies)

... and very low triglyceride level. And don't worry about that LDL of 170 because that number isn't accurate. See, on the majority of lipid tests the lab measures total cholesterol, HDL, and triglycerides but they calculate LDL rather than measure it. ... (7 replies)

... There is more to the calculation than you have included. One factor is your total cholesterol. ... (1 replies)

... The calculation seems correct. Also, I have a record of 15 blood tests starting in 1984, and the trigs are all over the place, from a low of 68 to highs of 214. ... (9 replies)

... I was on statins for 8 months and had Ezetimibe added in for one month before I got my trigs down and had my first valid LDL, and that was 27. By that point my total was 124 but it was shortly after angioplasty so low due to that. ... (9 replies)

... AFAIK the direct calculation of LDL is accurate without regard to elevated triglyceride levels. ... (20 replies)

... Something is clearly amiss here and you can't know for certain without a new test. A likely candidate for error is the simple calculation for LDL, but you can't know this without a new test. Insist that whoever is providing you the results double check their findings before giving them to you. ... (7 replies)

... The BioScanner 2000, as well as the two models sold under the CardioChek brand name, all test for Total, HDL, Trigs. From this, the LDL is calculated. ... (6 replies)

... According to data from the Framingham Heart Study, HDL is an independent risk factor for CHD. ... (19 replies)

... Home testing devices have been around for a little while. I'm talking about the meter variety, not the kind with a strip that you compare the color to a color chart. ... (1 replies)