Final answer:
To assess the FHR after changing the maternal position, the appropriate action is to continue monitoring the FHR.
Step-by-step explanation:
When assessing the FHR (Fetal Heart Rate) after changing the maternal position, the appropriate action would be to continue monitoring the FHR. Changing the maternal position can sometimes affect the FHR, so it is important to observe any changes in the rate or rhythm of the baby's heart. This can be done using a fetal heart rate monitor or Doppler device to listen for the baby's heartbeat.