catheter is a small, flexible tube that can be inserted through the urethra and
into the bladder, allowing urine to drain. The urethra is the tube that carries
urine outside the body from the bladder.
A urinary catheter may
be used for someone who is unable to urinate or who has trouble moving and
getting to the bathroom. It is also used to collect a urine sample from someone
who is very ill or unable to provide a clean-catch urine specimen. A urinary
catheter is also used for certain tests done on the urinary system.
June 29, 2012
E. Gregory Thompson, MD - Internal Medicine & Avery L. Seifert, MD - Urology
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