Left ventricular function Pumping function of the chamber supplying body circulation.

Leukotriene Modifier A drug that inhibits the formation of chemicals called leukotrienes, thereby improving lung function by blocking contraction of the airway, and by decreasing mucus production and inflammation in the airways.

Lipid Any of a variety of fat and fat-like substances characterized by being water-insoluble.

Lipoprotein A complex of lipid and protein molecules that transports lipids, primarily cholesterol. And triglycerides, from one organ to another; LDL and HDL are lipoproteins.

Low-density lipoprotein A complex of lipid and protein molecules to transport cholesterol, also called " "LDL." The cholesterol component that transports cholesterol from the liver to the rest of the body.

Lung Volume Reduction Surgery Surgical technique used in persons who have emphysema to remove the non-functional diseased portion of the lung in attempt to restore more normal and efficient breathing mechanics.

Sources:

Clinical Practice Guideline Number 17: Cardiac Rehabilitation, AHCPR Publication No. 96-0672, October 1995

Virtual Hospital: University of Iowa Family Practice Handbook, 3rd Edition: Pulmonary Medicine: Chronic Obstructive Pulmonary Disease (COPD)

U. S. Department of Health and Human Services

	Public Health Service
	Agency for Health Care Policy and Research
	National Heart, Lung, and Blood Institute