LDL is not the same as lipoprotein a.
LDL, or low-density lipoprotein cholesterol , is a complex of proteins, cholesterol, and phospholipids that is converted from triglycerides in very low-density lipoproteins by hydrolytic metabolism. Its main function is to serve as a carrier of cholesterol in the blood. It is an important component of lipid screening to help detect hypercholesterolemia and to assess the risk of coronary heart disease.
Lipoprotein A is a special cholesterol-rich macromolecular lipoprotein synthesized in the liver. Its main function is to prevent blood clots from dissolving in blood vessels. The level of lipoprotein a can be used to indicate the degree of atherosclerosis, and lipoprotein a testing can assist in determining the likelihood of coronary heart disease.
When LDL or Lipoprotein a test is needed, it is recommended to choose a regular hospital for the test.