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.
Risks of urinary catheterisation. The main disadvantage of using a urinary catheter is that it can sometimes allow bacteria to enter the body. This can cause an infection in the urethra, bladder, or less commonly the kidneys. These types of infection are known as urinary tract infections (UTIs) .