A resting heart rate >100 bpm and/or a mean 24-hour ambulatory heart rate >90 bpm in a pregnant woman is not normal and requires further investigation. If all known causes of sinus tachycardia are excluded with appropriate investigations, then the likely diagnosis is inappropriate sinus tachycardia.Mar 8, 2017
When should I be worried about shortness of breath during pregnancy?
It's normal to feel a mild breathlessness during pregnancy. Talk to your health care provider immediately if your breathlessness becomes severe or comes on very suddenly. Also, call your health care provider right away if you have any of