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 tube drains urine from your bladder. You may need a catheter because you have urinary incontinence (leakage), urinary retention (not being able to urinate), prostate problems, or surgery that made it necessary. Clean intermittent catheterization can be done using clean techniques.