COMLEX Osteopathic Medicine

Answer - C - Urinary sediment is the heavier part of urine that can be obtained by cytocentrifugation of a urine sample. Casts tend to be mucoprotein bodies that can capture chemicals or substances in the renal tubules and allow them to pass into the urine. Crystals can form from the solidification of solutes within the urine. Different types of crystals and casts can indicate a variety of conditions or diseases.