Question

Which of the following are the mechanisms of action of digitalis glycosides?
i. Inhibition of $Na^{+}-K^{-}$ ATPase enzyme.
ii. Reduction in the auriculo-ventricular conduction rate.
iii. Increase in the cardiac output.
iv. Acceleration of auriculo-ventric ular conduction rate.

• A. Only iii
• B. i, ii and iii
• C. ii, iii and iv
• D. Only i

Answer 1

Answer: (B)

i, ii and iii

Answer 2

The correct answer is option (B) : i, ii and iii