The medical staff watching from the sidelines heard the characteristic beep of the monitor, but this particular beep was spectacular to their ears. They instantly became excited.
This was a conditioned reflex after working in the field for many years.
The family members were naturally slower in response.
This was the first time most of the patient's family members witnessed doctors resuscitating a patient. It might be the first time some witnessed CPR, or this might also be the first time some of them saw a monitor. Therefore, they were unable to differentiate which sound was normal or which sound was abnormal.
Even when a nurse excitedly shouted the phrase "sinus rhythm", the patient's family members still looked very confused.
"Si… is it good or bad?"
"They said sinus, so it might not be good… I can't tell, what's sinus again?"
"He looks so pale…"
"Shhh…"