Persistent tachycardia warrants careful monitoring and further evaluation. A fetal heart rate consistently below 120 bpm may signal oxygen deprivation, low maternal blood pressure, or fetal heart ...

The principal maternal adverse effects are hyperglycemia, cardiac arrhythmias, myocardial ischemia, pulmonary edema, hypotension, and tachycardia. The infrequent fetal and newborn adverse effects ...

If the fetal heart rate pattern is nonreassuring ... such as acute shortness of breath, tachycardia, syncopal episodes, severe asthma, or cardiac condition. These women need physician care.