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.
Urinary catheters come in many sizes and types. Urinary catheters are hollow, partially flexible tubes that collect urine from the bladder. Urinary catheters come in many sizes and types. Urinary catheters are hollow, partially flexible tubes that collect urine from the bladder.