MSFinals-3595
A 25-year-old woman has undergone an artificial rupture of membranes to speed up a labor that is progressing slowly. While her partner is assisting her in changing positions for comfort, she suddenly becomes breathless and collapses from the bed. She is now unresponsive and unconscious, with a blood pressure of 82/50 mmHg and a heart rate of 134 beats per minute. What is the probable diagnosis?