Which cardiac agent may be administered endotracheally?
a. Lidocaine
b. Epinephrine
c. Atropine
d. All of the above
Question 2
How does digoxin exert an inotropic effect on the myocardium?
a. By reversibly inhibiting the Na+/K+-ATPase pump
b. By stimulating the vagus nerve
c. By increasing extracellular sodium concentrations
d. By pumping calcium out of the cell