Measurement of the amount of cholesterol, a eukaryotic sterol that in higher animals is the precursor of bile acids and steroid hormones and a key constituent of cell membranes, carried in chylomicron molecules in a specified volume of serum, the clear liquid that separates from blood after it has clotted completely, i.e. blood plasma from which fibrinogen has been removed. Chylomicrons are a class of lipoproteins (approximate density range <0.95 g/ml) that transport exogenous triglycerides and cholesterol from the small intestine to other tissues.
serum high density lipoprotein cholesterol level +
serum intermediate density lipoprotein cholesterol level
serum low density lipoprotein cholesterol level +
serum non-high density lipoprotein cholesterol level
serum total cholesterol level +
serum very low density lipoprotein cholesterol level