This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Medicine
Which of the following is an electrocardiographic feature of pulmonary hypeention? 
Select and explain. 
A. T wave inversion, B. Presence of U wave, C. SI, Q3, T3 pattern, D. PR prolongation
A: T wave inversion
Answer: A: T wave inversion 
Explanation: 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 wave/S wave ratio greater than one in lead Vl (dominant R wave)