What device is inserted into a patient's bladder to allow urine to drain freely?

• A. Catheter
• B. Stent
• C. Drainage tube
• D. Foley bag

Answer: (A)

A catheter is a medical device specifically designed to be inserted into a patient's bladder, enabling the free drainage of urine. This flexible tube facilitates the flow of urine from the bladder to a collection bag, helping to manage urinary conditions or obstructions. It is particularly useful in situations where a patient may be unable to urinate independently due to surgery, injury, or medical conditions affecting bladder function.

While a stent is also used in the urinary tract, its purpose is typically to keep a passageway open rather than to directly drain urine. Similarly, a drainage tube may refer to various types of tubes used for draining fluids from different parts of the body and does not specifically describe a device for the bladder. A Foley bag, often associated with urinary collection, is actually the collection bag connected to a catheter, not the device that is inserted into the bladder itself. Therefore, the catheter is the accurate term for the device designed to drain urine from the bladder.