Medical clearance 101 for Surrogate Mothers – Don’t come hungry! Be sure to have a good meal and plenty of water prior to your appointment as they will be drawing blood. Do be prepared to get naked! The Dr. will perform a sonohysterogram, which is a procedure where a thin catheter is introduced through the cervix to the uterus. Ultrasound images are taken while the saline solution is injected into the uterus. A basic physical exam will also be performed.. Don’t forget to ask questions! Do get excited because…once cleared, the next step is your IVF protocol!!