Westermark sign
Nils Johan Hugo Westermark (1892 - 1980) was a Swedish radiologist. Westermark sign (1938) of relative oligemia on CXR in pulmonary embolism
This ECG is from a 47 year old female. She presents with acute onset severe dyspnoea. Her vitals signs are BP 95/42; RR 30; sats 88% (room air) Describe and interpret this ECG