Catheters Flashcards
What are urinary catheters used for?
Urinary catheters are hollow tubes used to :
1.relieve urinary retention
2.obtain urine for analysis
3.irrigate the bladder
4.instill drugs into the bladder.
Types of Urinary Catheters
- Foley’s catheter (named after Fredrick Eugene Basil Foley - American Urologist)
- Malecot’s Catheter
- Red rubber catheter
What is a non-self-retaining catheter?
A non-self-retaining catheter is a simple red rubber catheter.
What is a non-self-retaining catheter?
A non-self-retaining catheter is a simple red rubber catheter.
What are some examples of self-retaining catheters?
Examples of self-retaining catheters include
-Foley’s catheter,
-Malecot’s catheter,
-Gibbon’s catheter, and
-De-Pezzer catheter.
Q: What is a 2-way Foley’s urinary catheter?
A: A 2-way Foley’s urinary catheter has one channel for drainage and another for inflating the balloon.
Q: What is a 3-way Foley’s urinary catheter?
A: A 3-way Foley’s urinary catheter has an additional channel for
-irrigating the bladder, often used when ongoing haematuria is expected, such as after transurethral resection of the prostate (TURP).
What is indwelling catheterisation?
A: Indwelling catheterisation is when a catheter is left in the bladder and remains there, achieved by using a balloon tip (Foley’s catheter), a flower tip (Malecot’s catheter), or strapping externally (Gibbon’s catheter).
Q: What is intermittent catheterization?
A: Intermittent catheterization involves introducing a sterile catheter intermittently by the patient or a care provider.
Q: What are the therapeutic indications for catheterisation?
A: The therapeutic indications include urine retention and urine incontinence
Q: What are the diagnostic indications for catheterisation?
A: The diagnostic indications include suspected bladder rupture and renal failure.
Q: Why is catheterisation done pre-operatively?
A: It is done to monitor urine output before an operation.
Q: What are some other indications for catheterisation?
A: Other indications include -unconsciousness
-spinal injury monitoring
-urine output monitoring
-abdominal pressure monitoring.
Q: What are some early complications of catheterisation?
A: Early complications include traumatic injury to the urethra, bleeding, and bypass.
Q: What are some late complications of catheterisation?
A: Late complications include
-infections (UTI),
-urethral strictures,
-incontinence,
-paraphimosis,
-blockage of the catheter,
-stone formation,
-failure of the balloon to deflate, and -difficulty in removing the catheter.
What are the length and size specifications for catheters?
A: The length is 38 cm for males and 22 cm for females. The size ranges from 10-25 French.
Q: What are the typical sizes of Foley’s catheters for adults and children?
A: For adults, the size is ≥16 F, and for children, it is 8 F or 10 F.
Q: What are the typical sizes of Foley’s catheters for adults and children?
A: For adults, the size is ≥16 F, and for children, it is 8 F or 10 F.
Q: What are the uses of Foley’s catheters?
A: Uses include draining urine in cases of retention, measuring urine output in renal failure, postoperative patients, and terminally ill patients, percutaneous cystostomy, cholecystostomy, and draining fistulas
Q: What are the steps involved in the catheterization procedure?
A: The steps include greeting the patient, explaining the procedure and obtaining consent, ensuring privacy, assembling equipment, washing hands, wearing sterile gloves, cleaning with chlorhexidine, using lignocaine gel for lubrication, passing the catheter, inflating the balloon, and connecting the catheter to a urine bag. During removal, the same amount of water is removed from the balloon.
Q: What is a Malecot’s catheter and what is it made of?
A: Malecot’s catheter is a self-retaining urinary catheter with an umbrella or flower tip, made of red rubber and containing sulphur, making it radio-opaque.
Q: Where is a Malecot’s catheter ideally used?
A: It is ideally used for suprapubic applications and is never introduced per urethrally.
Q: What is a red rubber catheter?
A: A red rubber catheter is a non-self-retaining urinary catheter with a blunt tip and only side openings.
