A list of prerequisites known as FORCEPS must be met before assisted vaginal birth is attempted.

Comprehensive abdominal and vaginal examinations must be performed to confirm that the patient meets all criteria to proceed safely.

Fetal head engagement is measured in fifth. The fetal head must be palpated at no more than 1 finger breadth or 1/5th above the pubic brim and at least at or below spines on vaginal exam in order to safely proceed with forceps delivery.