plasma intermediate density lipoprotein phospholipid level
serum high density lipoprotein phospholipid level
serum intermediate density lipoprotein phospholipid level
Measurement of the amount of phospholipid, any of various phosphorus-containing lipids that are composed mainly of fatty acids, a phosphate group, and a simple organic molecule such as glycerol, carried in intermediate-density lipoprotein (IDL) 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. IDL are relatively large lipoprotein particles (complex molecules that consist of a protein membrane surrounding a core of lipids) formed by degredation of very low density lipoproteins (VLDL) particles and thus having a size intermediate between those of VLDL and low density lipoproteins. The IDL class of lipoproteins is defined as having a density between 1.006 and 1.019 g/ml.
serum low density lipoprotein phospholipid level
serum very low density lipoprotein phospholipid level