Which of the following finding is shown in the chest leads?: (A) Myocardial ischemia, (B) Myocardial injury, (C) Digoxin, (D) Digoxin toxicity
Answer is A. The hea rate is nearly 125bpm. Notice the predominant T wave inversion in V1-V3. This is seen in myocardial ischemia. Diagnosis of myocardial injury needs elevated cardiac biomarkers. Digoxin leads to ST segment depression Digoxin toxicity leads to Ventricular Bigeminy Causes of T wave inversion Normal in children Myocardial ischemia Bundle branch block Ventricular hyperophy Pulmonary embolism Hyperophic obstructive cardiomyopathy Raised intracranial pressure