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.
Urethral catheterization may be performed for diagnostic or therapeutic purposes. Therapeutically, catheters may be placed to decompress the bladder in patients with. acute or chronic urinary retention as a result of conditions such as infravesicular. obstruction of the urinary tract or neurogenic bladder. Catheterization and subse-.