Urinary tract Indwelling urinary catheters are most commonly used to assist people who cannot urinate on their own. Indications for using a catheter include providing relief when there is urinary retention, monitoring urine output for critically ill persons, managing urination during surgery, and providing end-of-life care.<unk> s are used during the following situations: * On patients who are anesthesized or sedated for surgery or other medical care * On comatose patients * On some incontinent patients * On patients whose prostate is enlarged to the point that urine flow from the bladder is cut off * On patients with acute urinary retention * On patients who are unable due to paralysis or physical injury to use either standard toilet facilities or urinals * Following urethral surgeries * Following ureterectomy * On patients with kidney disease whose urine output must be constantly and accurately measured * Before and after cesarean section * Before and after hysterectomy * On patients who have had genital injury * On anorexic patients who are unable to use standard toilets due to physical weakness and whose urine output must be constantly measured * On patients with fibromyalgia who cannot control their bladder * On patients who have severe skin impairment and/or breakdown Cervical A<unk>  can also be used to ripen the cervix during induction of labor. When used for this purpose, the procedure is called extra-amniotic saline infusion. In this procedure, the balloon is inserted behind the cervical wall and inflated, for example with 30-80 mL of saline. The remaining length of the catheter is pulled slightly taut and taped to the inside of the woman's leg. The inflated balloon applies pressure to the cervix as the baby's head would prior to labor, causing it to dilate. As the cervix dilates over time, the catheter is readjusted to again be slightly taut and retaped to maintain pressure. When the cervix has dilated sufficiently, the catheter drops out. Other They are also used in cases of severe epistaxis (nosebleed) to block blood from freely flowing down the nasal passage into the mouth.<unk> s are also used in abdominal surgery.
Foley catheter
Penrose drain
Suprapubic aspiration
Perineal dilator
Urinary catheterization
Suprapubic cystostomy
Ureteric balloon catheter
Macy catheter