In regards to the contraindication for NTG regarding SBP dropping by 1/3 or more, should we basing this off the very first BP obtained on that call, or a BP obtained right before NTG usage? Ie. ischemic chest pain 00:00 BP of 180/100 00:03 SBP of 150/90 00:04 NTG usage 00:09 BP 115/75. In this case a 65 (180-115) point drop would rule us out if 1st BP counted, but a 35 (150-115) point drop would not rule us if BP prior to NTG used. As pts can often be particularly stressed/anxious right when we walk in the door, it would make sense to me that the BP closest to actual administration would be most indicative of their true clinical state.