In left sided massive pneumothorax, ECG shows all, except-: (A) Left axis detion, (B) Absent R wave, (C) Peaked P wave, (D) Precordial T wave inversion
Answer is A. Abnormal left axis detion in left-sided pneumothorax. Relevant QRS abnormalities (incomplete RBBB and T-wave inversion) in(10%). QRS amplitude in V2-V6 leads was significantly decreased in left-sided pneumothorax. Ref Harrison 20th edition pg 1546