Amultigravid client in labor at 38 weeks' gestation has been diagnosed with rh sensitization and probable fetal hydrops and anemia. which fetal heart rate pattern would the nurse find is most concerning?

The fetal heart rate which will be of most concern to the nurse is the SINUSOIDAL PATTERN HEART RATE.
This is because, a sinusoidal pattern heart rate is an indication that the autonomic nervous control that ought to control the fetal heart rate is absent due to serious lack of oxygen at the tissue level. RH sensitization, fetal hydrops and anemia are  usually associated with sinusoidal pattern. In order to improve the fetal outcome in this case given above, cesarean section should be considered for the patient\.

Maybe haha