Thank you. IF, and yes IF the ER doc suspected a DVT, she needed a doppler U/S. I have no idea what the physician saw, but no doctor worth his salt would ever let a suspected DVT leave the ER without some kind of workup. No matter how scuzzy the lady might have been. I hope he got at least a good H&P.
PE is sometimes VERY hard to dx. Not justifying this ER's care, but PE can be very deceptive in presentation.