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.
Long-term use of urinary catheters. Urinary catheters may be used by people who have problems passing urine. Long-term use is when a person uses a urinary catheter for at least 4 weeks. People who use a urinary catheter are at increased risk of getting an infection.