Final answer:
CPR is to be continued after administering a drug until the patient regains spontaneous circulation or is declared dead by a healthcare professional. Quick initiation and proper technique increase chances of recovery.
Step-by-step explanation:
After administering a drug during a medical emergency where the patient has suffered a cardiac arrest, the provision of CPR (cardiopulmonary resuscitation) should be continuous until certain outcomes are achieved. Specifically, CPR is generally performed until the patient exhibits a return of spontaneous circulation (ROSC) or is declared deceased by a qualified healthcare professional.
It is important to note that the chances of recovery are greater if CPR is started promptly after the heart stops and is performed effectively. According to current standards, this involves chest compressions that are at least 5 cm deep at a rate of 100 compressions per minute. Automated external defibrillators (AEDs) found in many public places also provide crucial support in the initial minutes following a cardiac arrest.