A shunt is typically used for what purpose in medical procedures?

A shunt is primarily used to drain excess fluid from certain body areas. This medical device allows for the controlled movement of fluid, typically in conditions where there is an accumulation that could cause pressure buildup or complications, such as in cases of hydrocephalus or certain types of edema. The design of a shunt permits the excess fluid to move from a site where it is causing issues, such as the brain or abdomen, to a location where it can be absorbed or eliminated from the body.

This specific function is crucial in managing conditions that involve fluid imbalances and helps alleviate symptoms and complications associated with fluid buildup. While shunts can also play a role in other applications, such as in certain types of medication delivery systems, their primary and most recognized use is in draining excess fluid.