Pericardial, Myocardial, and Pulmonary Syndromes

Question 1

The early phase of acute pericarditis is usually characterized by ?

Answer 1

ST segment elevations.

Question 2

A major difference between ST elevations asscociated with MI and those associated with acute pericarditis ?

Answer 2

ST-T changes occuring with pericarditis are usually more generalized and seen in both anterior and inferior lead distributions.

Question 3

What triad is virtually diagnostic of cardiac tamponade ?

Answer 3

Sinus tachycardia, electrical alterans, and low QRS voltage.

Question 4

ECG findings in pulmonary embolism ?

Answer 4

Sinus tachycardia at rest, arrhythmias such as ventricular ectopy and atrial fibrillation or flutter, inverted T waves in leads V1 to V3 to V4, S1Q3T3 pattern, shift of QRS axis to the right, ST depressions, a new complete or incomplete RBBB, a qR complex in V1, tall peaked P waves in the inferior leads.