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.
noun. Psi is the twenty third letter of the Greek alphabet. An example of psi is Ï. Psi is the twenty third letter of the Greek alphabet. An example of psi is the average human blood pressure of 2.32 psi/1.55 psi which equates to 120/80.
PSI is an abbreviation that stands for Pounds per Square Inch.* For tires, it refers to the internal pressure of an inflated tire. * It expresses the unit for a pressure measurement (number of pounds on each square inch of surface area that is subject to the relevant pressure). This is a unit designation used primarily in USA and Canada.