A urethral catheter is a thin, flexible tube typically constructed of silicone or latex that is inserted through the urethra into the urinary bladder.
The urethra is the tubular structure that transports urine from the bladder through the penis or vulva.
Catheters are available in a range of French sizes depending on factors such as the patient's age, sex, and underlying medical conditions.
Urethral catheters may be utilized to drain urine in the setting of urinary outflow obstruction. This could be due to benign prostatic hyperplasia in males or nephrolithiasis.
Catheters are sometimes employed for urinary incontinence when a patient lacks detrusor muscle control of the bladder. Catheters provide a means to empty the bladder and collect urine externally in such situations.
Catheters may be placed preoperatively, intraoperatively, or postoperatively for surgeries involving the lower urinary tract or adjacent anatomical regions.
Drainage via catheter aids in recovery from such procedures.
Catheters can also facilitate treatment of urinary tract infections by assisting in flushing and drainage of infected urine.
Prolonged indwelling catheterization predisposes to risks such as catheter-associated urinary tract infection due to easier ingress of bacteria into the lower tract.
Minor trauma or hemorrhage is possible during insertion or removal if resistance is encountered.
On rare occasions, catheter kinking or blockage may impede proper urinary drainage.
Close monitoring by healthcare professionals helps minimize potential complications.
Risks must be weighed relative to anticipated benefits on an individual basis given each patient's unique medical issues and needs.
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