Less commonly, cystitis may occur as a reaction to certain drugs, radiation therapy or potential irritants, such as feminine hygiene spray, spermicidal jellies or long-term use of a catheter. Cystitis may also occur as a complication of another illness. The usual treatment for bacterial cystitis is antibiotics.
The maneuver is based on the fact that when a patient forcibly exhales against a closed nose and mouth while bearing down, as if having a bowel movement, specific changes occur in blood pressure and the rate and volume of blood returning to the heart.
The symbol (U) that follows the maneuver means that the maneuver is performed Up Wind and the symbol (D) means that the maneuver is performed Down Wind the (T) is for turnaround maneuvers to be performed at the ends of the box.