從HDL和ratio可以算出total. The goal is usually to have a total less than 200, but in fact the total is not as important as the HDL and ratio, because higher HDL in a sense will "neutralize" higher LDL.
My blood sugar level is very healthy. But triglycerides value are from sugar and other carbohydrates under the influence of insulin. So in a way, a healthy triglycerides often indicate healthy blood sugar level.