The Effects of Halothane on Ocular Cardioreflex

Tell the surgeon to stop pulling on the eye muscle Hopefully that you should know is the first step before you're gonna give atropine. 10 minutes after incision heart rate decreases from 110 to 40 beats per minute Which of the following is the most likely cause? A administration of phenyl efferent eye drops b inadvertent external pressure on the carotid sinus See paradoxical response to a small dose of atropine D sinoatrial nodal depression by halothane E traction on an extra ocular muscle And I think what they're getting at here is that even if you've pre-treated with atropine it can still happen It's a pretty powerful reflex.