What is a jejunostomy tube used for?

A jejunostomy tube is indeed used as a feeding tube that is inserted directly into the jejunum, which is the middle section of the small intestine. This type of tube is particularly beneficial for patients who may have difficulty swallowing or require nutrition that bypasses the stomach. It allows for the delivery of necessary nutrients directly into the digestive system, ensuring that patients receive their dietary needs even when oral intake isn't possible. This can be crucial in various clinical situations, such as after certain surgeries or in diseases that impair swallowing or digestion.

The other options describe different medical devices or procedures that serve entirely different purposes. For example, measuring blood pressure is done with a sphygmomanometer or similar device, while medication administration can occur through various routes depending on the medication form. Additionally, drainage tubes for urinary problems would typically pertain to systems such as catheters, which are not related to feeding or nutrition. Therefore, understanding the specific function of a jejunostomy tube highlights its role in patient care and dietary management.