Which treatment would be least effective for a systole? | Surgery

   A. External pacemaker.
   B. Intravenous epinephrine, 10 ml. of 1:10,000.
   C. Intravenous calcium gluconate, 10 ml. of 10% solution.
   D. Intravenous atropine, 0.5 mg.

  Ans: C