In acute pulmonary embolism, the most frequent ECG finding is
Correct Answer: Sinus tachycardia
Description: The most frequently cited abnormality in pulmonary embolism is sinus tachycardia.Apa from that,it also shows S1Q3T3 sign-an S wave in lead I,a Q wave in lead III,and an inveed T wave in lead III.This finding is relatively specific. S1Q3T3 pattern in ECG of pulmonary embolism is also termed as Mc Ginn White Sign. Reference:Harrison's medicine-18th edition,page no:2172.
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