Cystatin C is a protein produced consistently by all nucleated cells and is a highly sensitive, reliable marker of glomerular filtration rate (GFR). Freely filtered by the kidneys and not returned to the bloodstream unless there’s tubular damage, Cystatin C is more accurate than creatinine in detecting early renal impairment. Our Cystatin C Test Kits for cats are ideal for routine health checks, early detection of kidney injury, preoperative renal assessments, and monitoring conditions like diabetes or hyperthyroidism. Easy to use and highly precise, they provide valuable insights into feline kidney health before clinical symptoms appear.