Medical tips - MT

QUESTION TIME 🔻
With successful intubation after 2 laryngoscopic attempts with 2mcg/kg fentanyl, 0.2mg/kg Etomidate and 2.5mg/kg scoline, the patient gets bradycardia with a heart rate of 36 bpm.
What is the most likely cause ?
A. Hypoxia
B. Hypercapnia
C.Reflex bradycardia from sympathetic stimulation
D. SA node dysfunction
E. Succinylcholine