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.
I would recommend taking measures to raise his HDL. In estimating risk of heart attacks, every HDL point below normal is worth about 4 LDL points that is high. Average normal HDL for adult men is 45, for women is 55. At an HDL level of 30, this viewer is 15 points below average for a man--quite a low number.