Labels:text | screenshot OCR: Resident and Staff Physician Patient Education Chart How Cholesterol Levels Affect the Arteries Cholesterol is a waxy substance with important body functions, but too much cholesterol circulating in the blood is a health risk. Blood cholesterol levels: Desirable--less than 200 mg/dl Borderline-high--200-239 mg/dl High--240 mg/dl and greater Cholesterol carried by low-density lipoprotien (LDL) can cause plaque to form on walls of arteries. Reprinted with permission from Resident and Staff Physician (c) 1991-92, 1993 by Romaine Pierson Publishers, Inc. Unaffected artery