Final answer:
An EMT may need to insert fingers into the vagina during an episiotomy or when suturing a perineal tear, aside from a breech delivery. These situations occur infrequently in modern practice due to the preference for Caesarian sections during complicated births.
Step-by-step explanation:
Aside from a breech delivery, another situation in which an Emergency Medical Technician (EMT) may need to insert fingers into the vagina is during an episiotomy or when suturing a perineal tear post-birth. An episiotomy is an incision made in the posterior vaginal wall and perineum that facilitates vaginal birth. This procedure was more common before recent advancements allowed for the perineum to tear on its own, which has been found to be less painful and to heal more quickly than a cut. Nonetheless, in contemporary practice, childbirth situations requiring an EMT to intervene with manual methods are rare due to the preference for delivery through Caesarian section in complicated births.