A study suggests that when blood triglycerides are lower than 100 mg/dL, LDL cholesterol levels are somewhat overestimated based on the formula labs use. That means your triglyceride levels are correct, but your LDL-C may be lower than what the results show. The lab may need to perform a different analysis to give you a precise LDL-C value if necessary
The Friedewald method estimates LDL cholesterol using the following formula: total cholesterol minus high-density lipoprotein (HDL)—or “good” cholesterol—minus triglycerides divided by 5. That equation, the researchers say, applies a one-size-fits-all factor of 5 to everyone and doesn’t take into account variations among individuals. With the same information required for calculation as the Friedewald method, the newer method uses a chart developed by Johns Hopkins physicians with 180 different factors to more accurately calculate LDL cholesterol and individualize a person’s assessment. This equation is as follows: total cholesterol minus HDL cholesterol minus triglycerides divided by a specific value from the chart. The new test doesn’t take any longer to provide results to physicians and patients, and the cost is the same to administer.
通常的LDL是CALCULATED. 通常的公式 LDL=TC-HDL-TRIG/5=295-96-35/5 = ~192
ASK THE DOCTOR TO ORDER A DIRECT MEASUREMENT OF LDL.
这么简单的错误，医生却没看出来让你吃药。即使不查肝胆也至少要先查下血管情况. 换一个医生吧。
A study suggests that when blood triglycerides are lower than 100 mg/dL, LDL cholesterol levels are somewhat overestimated based on the formula labs use. That means your triglyceride levels are correct, but your LDL-C may be lower than what the results show. The lab may need to perform a different analysis to give you a precise LDL-C value if necessary
https://www.timeofcare.com/ldl-cholesterol-calculation-and-high-triglycerides/
被广泛用来评价胆固醇问题的LDL竟然是算出来的，太必可思议了。这能可靠吗？
查了下Direct LDL Cholesterol。那我今晚就在系统里要求一下。
太感谢您了！！ 如果能做Direct LDL Cholesterol 我会再来汇报。
你是这方面的专业人士吗？是医生吗？以后多向你请教。
（我不知道这么问是不是有些唐突？如果不便，不用回答。如果你不回答，我就自己删掉这个跟帖。非常抱歉，我没有敌意。我很尊重这里懂行的各位，我虚心学习和请教。）
换lab, 重新做过lipid panel test.
大概三英寸见方的韭菜饼。此后到今天早上的10点只有喝水。
通常血检参考范围Triglycerides<150 mg/dL ，没有最低值
比如一般50上下成年人，Triglycerides多少算过低？
Average Blood Glucose (Calculated From HgBA1c Level)
The Friedewald method estimates LDL cholesterol using the following formula: total cholesterol minus high-density lipoprotein (HDL)—or “good” cholesterol—minus triglycerides divided by 5. That equation, the researchers say, applies a one-size-fits-all factor of 5 to everyone and doesn’t take into account variations among individuals. With the same information required for calculation as the Friedewald method, the newer method uses a chart developed by Johns Hopkins physicians with 180 different factors to more accurately calculate LDL cholesterol and individualize a person’s assessment. This equation is as follows: total cholesterol minus HDL cholesterol minus triglycerides divided by a specific value from the chart. The new test doesn’t take any longer to provide results to physicians and patients, and the cost is the same to administer.
有些lab的报告上面会注明是用新算法
最准的是直接测出来的LDL，但是费用高
https://www.hopkinsmedicine.org/news/newsroom/news-releases/new-cholesterol-calculation-may-avoid-need-to-fast-before-testing-study-suggests
现在我在网上也找不到合适的。买了一个好像还是defect。不知您有没有方便好用的血糖仪推荐？
https://bbs.wenxuecity.com/health/1046298.html
formula:
total cholesterol minus high-density lipoprotein (HDL)—or “good” cholesterol—minus triglycerides divided by 5.
Reference Range: <150 mg/dL