Real story

Everyone knows that if a person suddenly falls and stops moving - it means that he had a sudden cardiac arrest. And this means that he urgently needs first aid. - first hit him hard in the chest (precordial blow), then an indirect heart massage and artificial respiration.
I'll tell you such a story. During my student days, I was on duty at night in the intensive care unit. All patients who entered there were connected to the monitor: they glued three electrodes on the chest, from which the wires went to the monitor, and a graph of the cardiogram and respiration was drawn on the monitor. In addition, each monitor was connected to a central server located in the emergency room of the on-duty resuscitator, so that he could observe immediately all patients and, in case of emergency, provide them with emergency assistance. All monitors, with the proper operation of the heart, usually quietly squeak to the beat of the heartbeat, and when the heart is stopped, the siren is loudly squealing (this is you on the TV series about House MD know). And that's why nurses often turn off the speakers, so that the squeaking of several monitors does not go crazy. At that time disposable electrodes were in short supply, and therefore the same electrode was used many times and was glued to the patient with the usual plaster. So, we had a woman of about eighty. I glued electrodes to the woman, connected the monitor, and, having fulfilled all the assignments, sat by the light of the table lamp in the armchair and at first read the textbook and then for a doze. I switched off the sound on the monitor as usual. And suddenly in the middle of the night the emergency resuscitator comes running, runs up to her grandmother and strikes her with all the swing on her breastbone. The woman jumps with eyes bulging with fear and pain, and the reanimatologist, realizing that she is alive, says: "Do not sleep, you can not sleep!" And leaves. From that very moment until the morning, I was able to soothe this woman. And in the morning, after the professorial detour, in which the woman informed the professor that "at night they are being killed in the intensive care unit", she was transferred to a general department. It turned out that at night one of the electrodes in the woman got unstuck and on the central monitor in the ordinarian alarm triggered and a straight line went, which led to such a quick action of the reaniatologist.
This case has now become in a certain circle an anecdote and is often mentioned in medical bikes. And I served as a good lesson, after which I already stuck the electrodes firmly and did not sleep on duty.