Para o perfil biofísico é feita uma ecografia onde são avaliados diversos parâmetros com nota entre 0 e 2 (a nota máxima será 8).  

A detailed ultrasound to observe your baby's body movements, muscle tone (flexing of the arms and legs), and breathing movements (the baby's ability to move his chest muscles and diaphragm), and the amount of amniotic fluid surrounding him.

Faz parte ainda o CTG onde se avalia a condição cardíaca.  

A nonstress test to assess whether your baby's heart rate changes when he's moving. For this, you lie on your left side. A technician straps two devices to your belly: One monitors your baby's heartbeat and movement; the other records contractions in your uterus. The technician listens to and watches your baby's heartbeat on an electronic screen.