---

- See Diff Dx 
- If hypotensive (SBP <90 mm Hg) place in T berg; 
- If HR < 40/min, ready Atropine 1mg premixed syringe; 
- consider initial dose of 0.4 or 0.5 mg IV; 
- if this is not effective consider isoproterenol; 
- or instead of isoproterenol consider transvenous pacing; 
- if blood pressure is satisfactory, without dizziness, light headedness, or disordered mentation, cardiac output is likely to be adequate; 
- even if CO is adequate, Bradycardia is treated if less than 45/min