Before the sphygmograph was developed, physicians assessed pulse strength by placing their fingers on a patient's wrist and feeling for arterial resistance. |
![](https://webarchive.library.unt.edu/eot2008/20090830102244im_/http://www.nlm.nih.gov/changingthefaceofmedicine/img/spacer.gif) |
The sphygmograph offered a more consistent method to asses, compare... View the text-only version |