1. Definition of adherence. In terms of TB control, adherence to treatment may be defined as the extent to which the patient's history of therapeutic drug-taking coincides with the prescribed treatment (7) . Adherence may be measured using either process-oriented or outcome-oriented definitions.
In general, peripheral catheters are preferred when IV access is required for shorter periods, when direct access to the central circulation is unnecessary, and when smaller gauge catheters suffice. Peripheral access is generally safer, easier to obtain, and less painful than central access.
Care for an Indwelling Urinary Catheter. A urinary catheter is a flexible plastic tube used to drain urine from the bladder when a person cannot urinate. A doctor will place the catheter into the bladder by inserting it through the urethra. The urethra is the opening that carries urine from the bladder to the outside of the body.