Pregnant woman heart rate 120 is dangerous?

Pregnant women heart rate 120 beats/min is dangerous, should be combined with the actual situation to judge.

If pregnant women are emotional excitement, strenuous exercise and other circumstances appear heart rate 120 beats/min, calm quickly return to normal, at this time there is generally no danger. Usually caused by normal physiological phenomena, condyloma sympathetic nerve excitation, caused by accelerated myocardial contraction, do not worry. If pregnant women are at rest under the above conditions, accompanied by chest distress, poor breathing, abdominal discomfort and other symptoms, at this time more dangerous. It could be caused by a heart attack, which affects myocardial function, leading to abnormal myocardial contractions and elevated heart rate.