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.
1 A typical level of HDL-C is between 40-50 mg/dL (1.0-1.3 mmol/L) for men and between 50-59 mg/dl (1.3-1.5 mmol/L) for women and is associated with average risk of heart disease. 2  Based on many epidemiologic studies, HDL-C of 60 mg/dL (1.55 mmol/L) or higher is associated with a less than average risk of heart disease. If HDL-C is less than 40 mg/dL (1.04 mmol/L), there is an increased risk of heart disease that is independent of other risk factors, including the LDL-C level.