33 yo female; left side chest pain, radiating down left arm; morbidly obese; described as crushing pain with sensation of palpitations; history of chest pains, bilateral pulmonary emboli and asthma. cocktail party wears in yellow
HR 93 regular, RR 24, BP 125/79, SPO2 98%, GTN given, Aspirin contraindicated, pain score 9, entonox effective down to score of 3.