What are straight catheters primarily used for?

Straight catheters are primarily used to drain the bladder and then be immediately removed. This type of catheterization is often used in situations where temporary drainage of urine is needed, such as during a medical procedure, to obtain urine specimens, or to relieve urinary retention. After the bladder has been emptied, the straight catheter is taken out, which helps reduce the risk of infection as it is not left in place for extended periods.

In contrast, continuous drainage from the bladder is typically done using a Foley catheter, which is designed to be left in place. Similarly, catheters that remain in the bladder for an extended period are also catheter types like the Foley catheter, which are specifically intended for longer-term use. Collecting urine from patients who have no bladder control may imply the use of indwelling catheters or specialized collection devices, rather than a technique involving a straight catheter.