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.
Care for an Indwelling Urinary Catheter. A urinary catheter is a flexible plastic tube used to drain urine from the bladder when a person cannot urinate. A doctor will place the catheter into the bladder by inserting it through the urethra. The urethra is the opening that carries urine from the bladder to the outside of the body.