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 urinary catheter is a tube used to drain urine. The type of catheter used depends on the patient's needs. It can be inserted through the urethera into the bladder or inserted directly into the bladder.