Which medical term refers specifically to repeated actions of injecting and withdrawing fluid?

The correct answer is barbotage, which specifically describes the process of repeatedly injecting and withdrawing fluid, particularly in a medical or laboratory setting. The term is often used in contexts involving the extraction of gas or fluid from a liquid, where the movement or bubbling of the fluid plays a key role. This term captures the essence of the repeated actions associated with the technique.

In contrast, aspirate generally refers to the act of drawing a substance (typically fluid) into a syringe or similar device, but does not specifically imply the repeated action of injecting and withdrawing. Infuse means to introduce a fluid, often a medication or nutrient, into the body, usually continuously over a period, rather than the specific back-and-forth movement. Transfuse involves the transfer of blood or blood components from one individual to another, which also does not involve the repeated injection and withdrawal of fluid as a primary action.