After 30 seconds of effective ventilation and despite being adequately oxygenated, Colton's heart rate falls to 53 bpm with continued inadequate perfusion. What should the respiratory therapist Marta do next?
1) Continue with the bag-valve-mask ventilation
2) Stop the bag-valve-mask ventilation and start chest compressions
3) Administer an IV push of epinephrine
4) Apply a defibrillator to deliver an electrical shock
