CASE 1 — A 45-year-old man is noted to have a blood pressure of 150/100. He has been hypertensive for at least 10 years. What abnormality is shown on the electrocardiogram (waveform 1A-B)?
CASE 2 — What is the cause of the wide QRS complex (waveform 2A-B)?
CASE 3 — What is the cause of the patient's rapid, irregular pulse (waveform 3A-B)?
CASE 4 — A patient complains of palpitations, with sensation of "extra" heartbeats. What is the arrhythmia (waveform 4A-B)?
CASE 5 — What is the arrhythmia (waveform 5A-B)?
CASE 6 — A patient complains of palpitations. What is the arrhythmia (waveform 6A-B)?
CASE 7 — The following electrocardiogram is obtained during a cardiac arrest. What is the arrhythmia (waveform 7A-B)?
CASE 8 — What is the mechanism of the patient's rapid, irregular pulse (waveform 8A-B)?
CASE 9 — How does the rhythm change abruptly in this patient (waveform 9A-B)?
CASE 10 — What atrial arrhythmia and what ventricular conduction disturbance are apparent in this lead V1 rhythm strip (waveform 10A-B)?
CASE 11 — What arrhythmia is present in this patient (waveform 11A-B)?
CASE 12 — A 50-year-old man presents with chest discomfort. The electrocardiogram is most consistent with which diagnosis (waveform 12A-B)?
●Acute inferolateral myocardial infarction
●Acute pericarditis
●Prinzmetal angina
●Normal variant "early repolarization"
●Ventricular aneurysm
CASE 13 — A 63-year-old woman had severe chest pain six hours ago. What does the electrocardiogram show (waveform 13A-B)?
CASE 14 — What conduction disturbance is present (waveform 14A-B)?
CASE 15 — A 58-year-old man had severe substernal chest pain two days ago. What abnormality is shown on the electrocardiogram (waveform 15A-B)?
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