A blockage in the urinary tract can cause leukocytes to appear in the urine. This is often accompanied by blood in the urine. Trauma to the pelvis, a pelvis tumor, bladder or kidney stones, unwanted objects in the urinary tract or prostate hypertrophy can cause a blockage that damages the urinary system.ladder infections or inflammation of the urinary tract and ureters can also cause leukocytes to appear in the urine. Sexual intercourse can cause the transfer of bacteria that can cause an infection to form in the urinary tract.
The definition of a residual is something left over after other things have been used, subtracted or removed. An example of residual is the paint which left over after all the rooms in a house have been painted.
So, residual value of a car is the amount that it is worth after some of its original worth is gone. In other words, residual value can be described as the future value of a car in terms of percentage of depreciation of its initial value. Residual value takes on a different meaning for car leases. Here's a common example used to help explain the residual value of cars for auto leasing.