What do the symbols U:C, MCV, MCH and RDW stand for on lab test results?

Mean Corpuscular Volume (MCV) a test that helps diagnose a cause of an anemia
Red blood cell distribution width (RDW) a measure of the variation of red blood cell
Mean cell hemoglobin (MCH) is the average mass of hemoglobin per red blood cell in a sample of blood
you:C is Urine Culture