How do blood transfusions work? - Bill Schutt

Dive into the history of the life-saving procedure of blood transfusions and how it has evolved since the 17th century. -- In 1881, doctor William Halsted rushed to help his sister Minnie, who was hemorrhaging after childbirth. He quickly inserted a needle into his arm, withdrew his own blood, and transferred it to her. After a few uncertain minutes, she began to recover. What made this blood transfusion successful? Bill Schutt explains the history of the life-saving procedure. Lesson by Bill Schutt, di