transfusion

Imagine someone has lost a lot of blood after an injury or during surgery. A transfusion is when donated blood, plasma, or another blood product is given to that person through a vein. It helps replace what the body has lost and can save the person's life.

Most of the time, the word is used in medical situations. It usually means giving blood or part of blood to a patient, not just any kind of liquid. Sometimes people also use it in a figurative way, such as a transfusion of money or energy, to mean that something weak is being strengthened again.

A transfusion is a medical procedure in which blood or a blood product is put into a person's bloodstream, usually through an IV line. The blood may come from a donor, or in some cases from the same person if blood was collected earlier for later use. Doctors use transfusions to replace blood lost through injury, surgery, or illness, and also to give specific parts of blood, such as red blood cells, platelets, or plasma.

This treatment is common in hospitals and can be life-saving. A patient may need one after heavy bleeding, during cancer treatment, because of severe anemia, or when the body cannot make enough healthy blood cells. Modern testing and blood matching have made transfusions much safer than they were in the past, though doctors still use them with care because there can be risks.

The word can also be used in a figurative way. People sometimes speak of a transfusion of cash, hope, energy, or new ideas when something weak or failing receives fresh support. In both the medical and figurative senses, the central idea is the same: something important is being given to restore strength, stability, or life.