Hey guys 
1) What is the effect of nitrates on post MI mortality? Does it improve it?
If so, how?
2) Why is B-blockers contraindicated in vasospastic disorders (prinzmetal angina) ?
3) Why does digoxin toxicity increase when the patient is hypokalemic?
Although logically it should be the other way around!!
4) How does class I B anti arrythmics decrease Action Potential Duration?
Just trying to figure some sense behind facts
Appreciate your answers
1) What is the effect of nitrates on post MI mortality? Does it improve it?
If so, how?
2) Why is B-blockers contraindicated in vasospastic disorders (prinzmetal angina) ?
3) Why does digoxin toxicity increase when the patient is hypokalemic?
Although logically it should be the other way around!!
4) How does class I B anti arrythmics decrease Action Potential Duration?
Just trying to figure some sense behind facts
Appreciate your answers