Which of the following is most commonly associated with an increased risk for the development of torsades de pointes? a) Decreased PR interval b) Decreased QRS duration c) Increased PR interval d) Increased QT interval e) U waves The correct answer is D There is an increased risk for the development of torsades de pointes, [...]
ECG
A patient has persistent >2mm ST elevation in V2-6 two hours following a myocardial infarction, with hypertension of 205/115 mmHg. He has already been given morphine and aspirin. What is the next management of choice? a) IV Nitroglycerine b) Double-bolus r-PA c) IV GTN d) IV streptokinase e) Subcutaneous heparin The correct answer is A A working [...]
A 42-year-old man with acute renal failure is confused. His serum potassium is 8.1 mEq/L . The most likely abnormal ECG finding is: a) T wave inversion b) PR interval of 300ms c) QT interval of 0.4s d) U wave e) Tall tented T waves The correct answer is E The earliest ECG evidence of [...]