<prompt> Which of the following is an electrocardiographic feature of pulmonary hypeention?T wave inversionPresence of U waveSI, Q3, T3 patternPR prolongation  <response>: Answer- A. T wave inversionThe electrocardiogram ECG of a patient with PH may demonstrate.Signs of right ventricular hyperophy or strain including : -Right axis detion,an R waveS wave ratio greater than one in lead Vl dominant R wave 