Douglas Harper's Etymology Dictionary
Wiktionary
n. (context biochemistry English) A heterocyclic amine ''2-amino-1-methyl-5H-imidazol-4-one'' formed by the metabolism of creatine
Wikipedia
Creatinine ( or ; ) is a breakdown product of creatine phosphate in muscle, and is usually produced at a fairly constant rate by the body (depending on muscle mass).
Usage examples of "creatinine".
O'Connor, and the dates those tests were first described in clinically practical terms: X ray: chest and abdomen (1905-15) White cell count (about 1895) Serum acetone (1928) Amylase (1948) Calcium (1931) Phosphorus (1925) SCOT (1955) LDH (1956) CPK (1961) John O'Connor 45 Aldolase (1949) Lipase (1934) CSF protein (1931) CSF sugar (1932) Blood sugar (1932) Bilirubin (1937) Serum albumin/globulin (1923-38) Electrolytes (1941-6) Electrocardiogram (about 1915) Prothrombin time (1940) Blood pH (1924-57) Blood gases (1957) Protein-bound iodine (1948) Alkaline phosphatase (1933) Watson-Schwartz (1941) Creatinine (1933) Uric acid (1933) If one were to graph these tests, and others commonly used, against the total time course of medical history, one would see a flat line for more than two thousand years, followed by a slight rise beginning about 1850, and then an ever-sharper rise to the present time.
Water, ammonia, sodium chloride, potassium chloride, uric acid, creatinine, creatine, urea, phosphorus, magnesium-the list ran on.
Normal BUN, creatinine, calcium, phosphorus, iron, T-protein, albumin, globulin .