Study for the PMLS History of Medical Technology Test. Explore flashcards and multiple choice questions, each question is accompanied by hints and explanations. Get prepared for your exam!

Multiple Choice

The electrocardiograph was developed by which person?

The key idea is identifying who first made the electrical activity of the heart measurable in a practical clinical instrument. William Einthoven did just that by adapting the string galvanometer to detect the tiny electrical signals the heart generates and recording them as a tracing. In 1903 he produced the first clear electrocardiogram and introduced the term electrocardiogram, showing how the heart’s rhythm appears on a graph. He also laid the groundwork for the three-lead approach (Einthoven’s triangle), a foundation still echoed in modern ECGs. For this landmark achievement, he earned the Nobel Prize in Physiology or Medicine in 1924. Hermann von Helmholtz contributed broadly to physics and physiology but not to the invention of the ECG. Manuel Garcia is known for studies relating to voice production, not cardiac electrical recording. Nikola Tesla made numerous electrical engineering advances but did not develop the electrocardiograph.

The key idea is identifying who first made the electrical activity of the heart measurable in a practical clinical instrument. William Einthoven did just that by adapting the string galvanometer to detect the tiny electrical signals the heart generates and recording them as a tracing. In 1903 he produced the first clear electrocardiogram and introduced the term electrocardiogram, showing how the heart’s rhythm appears on a graph. He also laid the groundwork for the three-lead approach (Einthoven’s triangle), a foundation still echoed in modern ECGs. For this landmark achievement, he earned the Nobel Prize in Physiology or Medicine in 1924.

Hermann von Helmholtz contributed broadly to physics and physiology but not to the invention of the ECG. Manuel Garcia is known for studies relating to voice production, not cardiac electrical recording. Nikola Tesla made numerous electrical engineering advances but did not develop the electrocardiograph.