Definition of creatinine in US English:



  • A compound which is produced by metabolism of creatine and excreted in the urine.

    An anhydride of creatine; chemical formula: C₇H₄N₃O

    • ‘In some patients with cardiac toxicity, rise in liver enzymes and serum creatinine also occurred.’
    • ‘Because creatine is excreted as creatinine by the kidneys, it is prudent to take it with plenty of water.’
    • ‘Liver enzymes and creatinine were also assessed at each visit.’
    • ‘Both creatinine and cystatin-C are proteins found in the blood and filtered through the kidneys.’
    • ‘An alternative method is measurement of the ratio of protein or albumin to creatinine in an untimed urine specimen.’