Dr. Shiel received a Bachelor of Science degree with honors from the University of Notre Dame. There he was involved in research in radiation biology and received the Huisking Scholarship. After graduating from St. Louis University School of Medicine, he completed his Internal Medicine residency and Rheumatology fellowship at the University of California, Irvine. He is board-certified in Internal Medicine and Rheumatology.
A Foley catheter is a thin, sterile tube inserted into the bladder to drain urine. Because it can be left in place in the bladder for a period of time, it is also called an indwelling catheter. It is held in place with a balloon at the end, which is filled with sterile water to prevent the catheter from being removed from the bladder. The urine drains through the catheter tube into a bag and can then be taken from an outlet device to be drained. Laboratory tests can be conducted on the urine to look for infection, blood, muscle breakdown, crystals, electrolytes, and kidney function. The procedure to insert a catheter is called catheterization.
A Foley catheter is used with many disorders, procedures, or problems such as these:
Retention of urine leading to urinary hesitancy, straining to urinate, decrease in size and force of the urinary stream, interruption of urinary stream, and sensation of incomplete emptying
Obstruction of the urethra by an anatomical condition that makes it difficult for one to urinate: prostate hypertrophy, prostate cancer, or narrowing of the urethra
Urine output monitoring in a critically ill or injured person
Collection of a sterile urine specimen for diagnostic purposes
Nerve-related bladder dysfunction, such as after spinal trauma (A catheter can be inserted regularly to assist with urination.)