Ideal values on a lipid profile include total cholesterol levels below 200 milligrams per deciliter, according to Mayo Clinic. Low-density lipoprotein cholesterol should remain under 100 milligrams per deciliter, with high-density lipoprotein cholesterol levels higher than 60 milligrams per deciliter and triglyceride levels under 150 milligrams per deciliter.
Doctors measure cholesterol levels in milligrams per deciliter of blood. When combined with triglycerides, a type of fat in the blood, high levels of LDL cholesterol can build up in the arteries and form plaques. Plaques can cause atherosclerosis, or the narrowing and hardening of the arteries, notes Mayo Clinic. While atherosclerosis often shows no early symptoms, it can lead to heart attack or stroke. Treatments for high cholesterol and high triglyceride levels range from diet and exercise to medication and other medical procedures.