Umbilical cord prolapse is an emergency more likely in cases of shoulder or breech presentations. The umbilical cord will be visible protruding from the cervix on your exam. Compression of the cord will block fetal circulation. There are a few things to think about while getting this person an emergency c-section.
1 - Trendelenburg or knee-to-chest position 2 - Lift the presenting part of the baby off the cord 3 - Tell mom - don't push
Do not manipulate the cord as there is risk for vasospasm.
Sources Rosh Review First 10 EM https://first10em.com/2015/03/07/the-difficult-delivery-umbilical-cord-prolapse/ emDocshttp://www.emdocs.net/the-complicated-delivery-what-do-you-do/