Gross biochemical tests include triglycerides, cholesterol, LDL cholesterol, and HDL cholesterol. Liver function tests include total protein, albumin, total bilirubin, direct bilirubin, indirect bilirubin, as well as glutamic oxaloacetic transaminase, glutamic aminotransferase, and transpeptidase. The examination of renal function includes creatinine, uric acid, urea nitrogen, and cystatin. Tests for cardiac enzymes include troponin, creatine kinase, lactate dehydrogenase and other laboratory tests. Tests for trace elements include blood tests for copper, zinc, magnesium, iron, calcium, etc.