All of the following statements regarding the ECG changes in acute pericarditis are true, except:: (A) Sinus tachycardia is a common finding, (B) PR segment depression is present in majority of patients, (C) Global ST segment elevation is seen in early pericarditis, (D) T wave inversions develop before ST elevation return to baseline
Answer is D. In acute pericarditis, T wave inversion occur only after the ST segment return to the baseline level. Ref: Practical ECG Interpretation: Clues to Hea Disease in Young Adults By George Stouffer, Page 124