<prompt> ALL of the following statement regarding the ECG in acute pericarditis are true except -T wave inversions develop before ST elevation retur to baselineGlobal ST segment elevation is seen in early pericarditisSinus tachycardia is a common finding.PR segment depression is present in majority of patients  <response>: Ref: R.Alagappan Manual for Medicine 4th Edition pg no:112 Acute Pericarditis ECG shows Sinus tachycardia An elevated, concave upwards S-T segment Upright, tall, peaked T-waves earliest change No reciprocal changes in the opposite leads. 