OSMT Practice Exam 2026 – The Complete All-in-One Guide to Excelling in Your Ontario Society of Medical Technologists Exam!

The waste product excreted by the liver when old red blood cells (RBCs) are destroyed is bilirubin, which is then passed into bile. When RBCs break down, a component called heme is released, and this heme is transformed into bilirubin. The liver plays a crucial role in processing this bilirubin, conjugating it, and secreting it into bile, which eventually contributes to the digestion of fats in the intestine.

This process is important for maintaining the balance of substances in the body and ensuring that waste products are effectively removed. By excreting bilirubin through bile, the liver helps to eliminate the byproducts of hemoglobin breakdown, preventing the accumulation of potentially toxic substances in the bloodstream.