If a factor in raising the productivity of labor is not used in the production process, it is referred to as a reserve for increasing labor productivity. Reserves are classified according to their association with a particular production process, an economic sector, or the national economy.
Definition. 1  Urinary catheterization is the insertion of a catheter into a patient's bladder. The catheter is used as a conduit to drain urine from the bladder into an attached bag or container.
A ureteral catheter is inserted through the urethra. A ureteral catheter is often used to drain urine from the bladder. A ureteral catheter may be used to inject contrast dye into a patient prior to undergoing a CT scan. Treatment for some forms of bladder cancer may involve the use of a catheter.