Lab 5 - Catheters Flashcards
what is catheterization
- introducing a narrow tube thru the urethra and into the bladder to allow a continuous flow of urine into a drainage receptacle
in acute care, catheterization is particularly useful for…
- careful monitoring of output in hemodynamically unstable patients
what are 3 risks associated with catheterization
- catheter associated urinary tract infection
- blockage
- trauma to the urethra
due to the risks associated with catheterization, what is preferred
- preferred to rely on other measures for specimen collection or management of incontinence
what are 2 types of catheterization
- intermittent
- in-dwelling
describe how intermittent catheterization works
- a single-use straight catheter is introduced for 5-10 min, just long enough to drain the bladder
describe a straight catheter; how does it work
- single lumen with a small opening about 1.3 cm from the tip
- urine drains from the tip, thru the lumen, and into a receptacle
who performs intermittent catheterization
- the patient
- nurse
is intermittent catheterization sterile or clean in hospital ? why?
- sterile
- to reduce the risk of nosocomial infections
in the community, is intermittent catheterization sterile or clean?
- clean & is reused many times
for catheters that are reused in community settings, how are they cleaned between use?
- washed w soap & water& left to air dry until next use
what is a coude catheter? when is it used?
- type of catheter with a curved tip
- used for male patients with enlaged prostates that partly obstruct the urethra
what type of catheter is used for in-dwelling catheterization?
- foley
describe a foley catheter; when is it used
- retained for longer periods in the bladder
- uses a small balloon that anchora it against the bladder neck
how long do foley catheters stay in place
- until the pt is able to void completely and voluntarily
- or for as long as accurate mesaurements are needed
how many lumens can indwelling catheters have? which is more common?
- 2 (more common)or 3
describe the purpose of 2 lumens for indwelling catheters
- one lumen drains urine
- the other carries sterile water to inflate or deflate the balloon
describe the purpose of 3 lumens for indwelling catheters
- one carries urine
- one carries sterile water for the balloon
- the other allows for irrigation
how long can indwelling catheters be used for
- either short-term or long-term
what are 3 different materials that catheters can be made of
- latex
- silicone
- Teflon
list indications ofr short-term indwelling catheter (5)
- urine outflow is obstructed
- surgical repair of the bladder, urethra, and surrounding structures
- seeking to prevent urethral obstruction from blood clots
- measuring urine output in ciritcally ill patients
- continuous or intermittent bladder irrigation is required
list indications for long-term indwelling catheters (3)
- when chronic urinary retention is not manageable by intermittent catheterization
- when skin rashes, ulcers, or wounds become irritated by contact with urine
- in those w terminal illness when bed linen changes or toileting is painful
list indications for intermittent catheterization (6)
- seeking to relieve discomfort due to bladder distension, provision of distension
- when required to obtain a sterile urine specimen
- when required to assess residual urine after urination
- when managing urethral stricture
- when engaging in long-term management of pts with spinal cord injuries, neuromusc degeneration, or incompetent bladders
- pts who have incomplete bladder emptying due to neurogenic conditions (spinal cord injury for ex)
what is required for urethral catheterization
- physicians order