Mike McCune/Flickr. Definition: A British Thermal Unit (BTU) is the amount of heat energy needed to raise the temperature of one pound of water by one degree F. This is the standard measurement used to state the amount of energy that a fuel has as well as the amount of output of any heat generating device.
Causes of white particles in urine. White particles in urine may be caused due to: Urinary Tract Infection/ UTI: The urinary system is made of the kidneys, bladder, ureters, and the urethra. Sometimes, the urinary system may suffer from infections by bacteria, etc. and cause urinary tract infections.
Sponsored link. White cells are normally not found in urine or the urinary tract. Urine is a sterile liquid and hence does not contain any blood. Therefore, the presence of white blood cells in urine indicates that there may be a problem or an infection of the kidneys, the urinary tract, the urethra, or the bladder. Infection of the kidneys generally commences as an infection of the urinary tract, which then spreads to the other organs such as the kidneys. 2  Kidneys perform the important function of filtering the blood, which in turn prevent the passage of white blood cells into the urine.