1 Placental cord insertion visualization with prenatal ultrasonography. 2  J Ultrasound Med 1996;15:585-593. 3  Bjoro K Jr. 4  Vascular anomalies of the umbilical cord. 5  I. Obstetric implications.
Optimal levels for HDL (good) cholesterol are considered 60 mg/dL and higher. Slightly less great but still good levels are between 50 and 59 mg/dL. Levels that cause concern are considered 39 mg/dL or lower for men, and 49 mg/dL or lower for women.
As defined by the US National Cholesterol Education Program Adult Treatment Panel III guidelines, an HDL cholesterol level (HDL-C) of 60 mg/dL or greater is a negative (protective) risk factor.On the other hand, a high-risk HDL cholesterol level is described as one that is below 40 mg/dL.