Graduate Teaching Assistant Salary. The average pay for a Graduate Teaching Assistant is $18,637 per year. Most people with this job move on to other positions after 20 years in this career. For the first five to ten years in this position, pay increases sharply, but any additional experience does not have a big effect on pay. $12,082 - $32,705.
Some patients experience urinary retention after surgery, which may make a catheter necessary even if the patient did not need one during the procedure. Patients may also experience urinary retention after the removal of a Foley catheter.
In urinary catheterization a latex, polyurethane, or silicone tube known as a urinary catheter is inserted into a patient's bladder via the urethra. Catheterization allows the patient's urine to drain freely from the bladder for collection. It may be used to inject liquids used for treatment or diagnosis of bladder conditions. A clinician, often a nurse, usually performs the procedure, but self-catheterization is also possible. The catheter may be a permanent one (indwelling catheter), or an intermittent catheter removed after each catheterization.