Which of the following ionic imbalances inhibits Ca^2+ transport into cardiac cells and blocks contraction...?

Question

1). Hyponatremia
2). Hypokalemia
3). Hypernatremia
4). Hyperkalemia
5). Hypercalcemia

Answer 1

4). Hyperkalemia.....

http://en.wikipedia.org/wiki/Hyperkalemia

All the best....

Answer 2

4) hyperkalemia.