Abnormal Fetal tachycardia is defined as:
Fetal hea rate above 180bpm is considered as abnormal tachycardia. Refer page no 519 of Text book of obstetrics,sheila balakrishnan,2 nd edition.
Fetal hea rate >= 160 bpm
Fetal hea rate >= 180 bpm
Fetal hea rate >= 200 bpm
None of the above
Diagnosis in obstetrics