Definition of urinary catheterization
A urinary catheter is a tube that is inserted into the bladder through the urethra to allow the urine in the bladder to drain out
Indication of Urinary Catheter insertion
A urinary catheter is used in many different situations:
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A urinary catheter may be inserted to drain the bladder before or during a surgical procedure, during recovery from a serious illness or injury, or to collect urine for testing
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A urinary catheter may be used for a person who is incontinent of urine, if the person has wounds or pressure ulcers that would be made worse by contact with urine
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A urinary catheter is necessary when a person is unable to urinate because of an obstruction in the urethra
Types of catheters
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A condom catheter, consists of a soft plastic or rubber sheath, tubing, and a collection bag for the urine. The sheath is placed over the penis and the collection bag is attached to the leg. Collects urine when there is no need for catheter insertion.
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A straight catheter, is used when the catheter is to be inserted and removed immediately.
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An indwelling catheter, also known as Foley catheter, is left inside the bladder to provide continuous urine drainage.
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A suprapubic catheter is a type of indwelling catheter. The suprapubic catheter is inserted into the bladder through a surgical incision made in the abdominal wall, right above the pubic bone. (Suspicion of Urethral Trauma is an absolute contraindication)
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A 3-way catheter for continuous bladder irrigation (CBI) is a type of indwelling catheter. It is inserted to irrigate the bladder to prevent obstruction (i.e bleeding)
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Coude catheter, it’s semirigid with curved tip, used in men with prostatic enlargement
Technique of catheter insertion
Equipment: (check packages and expiry dates)
- Catheter tray (with drapes, fenestrated drape, cotton balls, forceps)
- Catheter (14-16 Fr ( women) 12 Fr for young girls (16-18 Fr (for men)
- Sterile drainage tubing with collection bag
- Correct size syringe (check catheter balloon)
- Sterile water
- Cleansing solution
- Lubricant
- Sterile gloves
- Specimen container
- Tape to anchor tubing
- Gloves
- Bath blanket
Note. nasotube has multiple holes, and longer than catheter - Folly’s catheter (indwelling) has only has two side holes - one to drain, the other to inflate