1) Sinus bradycardia is a rhythm with a range. a) Greater than 100 per minute in an adult b) Less than 60 per minute in an adult c) Less than 50 per minute in an adult d) Greater than 50 per minute in an adult 2) Supraventricular tachycardia is: a) It is a rhythm characterized by the absence of waves before the QRS complex. b) It is an extremely fast atrial rhythm with tight QRS complexes. c) It is a supraventricular arrhythmia characterized by a "sawtooth" flutter appearance on the ECG representing multiple P waves. 3) The P wave corresponds to: a) Electrical impulse traveling through the atria. This is synonymous with atrial depolarization and usually corresponds to atrial contraction. b) Depolarization of the left and right ventricles. This usually corresponds to contraction of the ventricles. c) A repolarization of the ventricles. 4) Identify the following rhythm: a) Second degree block b) First-degree block c) Sinus bradycardia d) Supraventricular tachycardia 5) Third-degree block is characterized by: a) Progressive lengthening of the PR interval. b) Absence of P waves before the QRS complex. c) The PP intervals are normal but are not related to the QRS complex. d) The PR interval is > 0.20 seconds and constant (not gradually lengthening) but falls by one beat. 6) Atrial fibrillation is characterized by absence of waves before the QRS complex and an irregular rate.6. a) True b) False 7) Identify the following rhythm: a) Sinus bradycardia b) Normal sinus rhythm c) First degree block 8) Treatment for a second-degree type 1 block is: a) Transcutaneous pacing b) Adenosine, synchronized cardioversion. c) Atropine, dopamine, transcutaneous pacing 9) Atrial flutter is characterized by: a) Wide QRS complex with normal pattern b) Saw-toothed flutter appearance c) Absence of P waves before the QRS complex 10) Which of the following is not a tachyarrhythmia? a) Atrial flutter b) Atrioventricular block c) Atrial fibrillation 11) Identify the following rhythm: a) Atrial flutter b) Ventricular fibrillation c) Ventricular tachycardia d) Atrial tachycardia 12) We assess a 66-year-old patient who has a heart rate of 40 per minute. How do we manage him. a) Pacemaker b) Atropine c) Adrenaline d) ECG 13) In atrial fibrillation of what type is the QRS complex. a) Width less than 12 seconds b) Width greater than 12 seconds c) Width less than 10 seconds d) Width greater than 10 seconds 14) Which of the following is a shockable rhythm. a) Atrial fibrillation b) Sinus tachycardia c) Ventricular fibrillation d) Asystole 15) Criteria for sinus tachycardia: a) HR > 100 beat/minute, PR < 0.20 seconds, normal QRS. b) HR > 100 beats/minute, PR > 0.15 seconds, QRS > 0.16 c) HR > 120 beat/minute, PR < 0.30 seconds, QRS normal d) HR < 100 beat/minute, PR > 0.20 seconds, QRS > 0.16 16) Identify the following rhythm: a) Ventricular tachycardia b) Acute myocardial infarction c) Right bundle branch block d) Left bundle branch block 17) Which of the following are characteristics of a polymorphic ventricular tachycardia. a) Flat P waves and QRS width greater than 0.12 milliseconds. b) Irregular rhythm and wide QRS greater than 0.12 milliseconds. c) Regular rhythm and wide QRS greater than 0.12 milliseconds d) Beaked P waves and narrow QRS 18) Sinus bradycardia meets all normal rhythm characteristics, but the heart rate is less than 60 beats per minute. a) True b) False 19) Pulseless electrical activity is an organized rhythm presented on the ECG with a palpable pulse. a) True b) False 20) Ventricular fibrillation is a pulseless, chaotic wave pattern that responds to electrical defibrillation. a) True b) False

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