As you probably already know, the popular phrase ‘knee-jerk reaction’ has its roots in medicine. Before the convenience of technology and diagnostic imaging, medical professionals often needed to ascertain what was happening internally by examining external clues. The stethoscope was one of the firs

How to use different sphygmometers 1. Electronic Sphygmometer 1) Keep quiet indoors and room temperature at around 20 °C.2) The subject should be mentally relaxed before measurement. It is best to have a rest for 20 to 30 minutes and empty the bladder. Do not drink alcohol, coffee and tea, in additi