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
describe the similarities & differences between inserting an intermittent vs indwelling catheter?
- both require physicians order
- both use strict aseptic technique
- most steps are the same except for indwelling you need to inflate the balloon
what is a closed drainage system? what is the purpose?
- after inserting an indwelling catheter, you must maintain a closed urinary drainage system to minimize the risk of infection
- this is achieved by adding a sterile collection bag to the end of the catheter
how much urine can urinary drainage bags hold?
1000 - 1500 mL
what are some important considerations for urinary drainage bag
- they should never be raised above the level of the bladder
- should hang on the bed frame or wheelchair
- should not touch the floor
- do not hook onto the side rails
- when the patient ambulates ot must be below their waist
why shouldnt the drainage bag be attached to the side rails?
- it can be raised above the bladder accidentaly
- can cause tugging on the catheter
why shouldn’t the drainage bag be above the level of the bladder?
- urine in the bag & tubing becomes a medium for bacteria
- so if urine flows back into the bladder it can cause infection
what should you do if the catheter becomes disconnected from the drainage tubing
- both tips should be cleansed with an alcohol swab before being reconnected to minimize the transfer of microorganisms into the tubing
what do most drainage bags contain to prevent urine from flowing back into the bladder>
- antireflux valve
what is a spigot
- like a plug found at thr base of the bag which is used to empty the bag
when should the spigot be clamped? where should it be stored?
- should always be clamped except during emptying
- when it is off, it should be stored in the protective pouch on the side of the bag
how can we ensure that the drainage system remains unobstructed? (3)
- check for kinks or bends in the tubing
- avoid positioning the patient on the drainage tubing
- observe for clots or sediment that may occlude the collection tubing
list 3 nursing priorities for catheter care
- maintain patient comfort
- prevent infection
- maintain an unobstructed flow of urine
why do we need to provide perineal hygeine?
- buildup of secretions or encrustation at the catheter insertiong site is a source of irritation & potential infection
when should we provide perineal care (3)
- at least twice daily
- after a bowel movement
- as needed
describe how to provide perineal care
- soap & water
- or skin cleansers
what is one thing to be cautious about while providing perineal care? why?
- do not accidentally advance the catheter upward into the bladder during cleansing
- otherwise could introduce bacteria into the bladder
when should you provide catheter care?
- three times/day
- after defecation or bowel incontinence
all patients with catheters should have a daily fluid intake of ____ if permitted
- 2000 mL to 2500 mL
why should pts with a catheter have high fluid intake?
- will allow a large volume of urine that flushes the bladder & keeps the catheter clear of sediment
what is the most important strategy in preventing the onset of infection
- hand hygeine between patients
list 2 other ways to prevent infection
- maintaining a closed urinary drainage system (breaks in the system can lead to the intro of microorganisms)
- monitor the patency of the system to prevent pooling of urine
list 5 places at risk of introduction of infectious organisms into the urinary drainage system
- the site of catheter insertion
- the drainage bag
- the spigot
- the tube junction
- the juction of the tube & bag
what is the purpose of catheter irrigations
- to maintain patency of indwelling catheters
- blood, pus, or sediment can collect within tubing which can result in bladder distension and buildup of stagnant urine
- installation of sterile solution ordered by a physician clears the tubing of accumulated material
what might physicians order for pts with bladder infections
- antiseptic or antibiotic bladder irrigations to wash out the bladder & treat local infection
what kind of technique is folllowed for irrigation?
- sterile
what should you do before performing catheter irrigation
- assess the catheter for blockage
what is an indicator of blockage
- if the amt of urine in the drainage bag is less than the pts intake or less than the output of the previous shift
what is milking of tubing
- technique that may be done if urine is not draining freely
- gently squeezing and then releasing the drainage tube
- start from the pts body and work towards the drainage bag so the clot will not be forced back into the catheter
what is recommended during intermittent irrigations
- maintenance of a closed system
a single intermittent irrigation is safer and less likely to introduce infections into the urinary tract than…
- repeated irrigations
what are 2 methods for catheter irrigation
- closed bladder irrigation system
2. opening of the closed drainage system to instill irrigations
describe closed bladder irrigation; what is it used for
- provides frequent intermittent irrigation or continuous irrigation without disruption of the sterile catheter system using a 3-way catheter
- used for partial blocks or bladder instillations
what is closed bladder irrigation often used for
- pts who have had genitourinary surgery & are at risk of blood clots & mucous fragaments occluding the catheter
what is a con to opening the closed drainage system for irrigation?
- greater risk of infection
why might we need to open the closed drainage system for irrigation>
- if the catheter becomes blocked & it is undesriable to change the catheter
ex. after recent bladder or prostate surgery
when removing an indwelling catheter you.. (2)
- promote normal function of the bladder
- prevent trauma to the urethra
what is required to remove an indwelling catheter
- clean, disposable towel
- discard receptacle
- sterile syringe that is the same size of volume of the solution inside the balloon
- disposable gloves
what do some insitutions recommend doing while removing an indwelling catheter
- collect a sterile urine specimen
- send the catheter tip for culture & sensitivity