This happened a while ago but I think the forum needs it now: I got called at 3 am by a terrified OB nurse telling me there is a parturient coding in OB. I take call from home, so I got in the car and flew to the hospital, 7 minutes later I was in the OR, and here is the Data: 37 Y/O, G1 P0, previously healthy,obese, black woman, term pregnant, was in active labor, suddenly became hypotensive and lost consciousness with simultaneous fetal deceleration, now on OR table, unconscious, ER physician ventilating with a mask BP: 50/25 , Monitor shows SR at 120/ min, SPO2 not getting a signal. I could feel faint carotid pulse. OB ready to cut. She has a patent #18 IV and did not have an Epidural. Lets talk Intraop management and take it from there.