1) What is an electrocardiogram (ECG)? a) A blood test b) An imaging study of the heart c) A graphic representation of the electrical activity of the heart 2) What are the main waves of a normal ECG? a) P wave, QRS complex and T wave b) X wave, Y wave, Z wave c) Alpha, beta and gamma peak 3) At what rate does the following image represent? a) Atrial depolarization b) Ventricular depolarization c) ventricular tachycardia 4) Can we observe p waves in ventricular tachycardia? a) TRUE b) FALSE 5) What is sinus bradycardia? a) Sinus bradycardia is a sinus rhythm with a rate of less than 100 beat per minute in an adult b) Sinus bradycardia is a sinus rhythm with a rate of less than 60 per minute in an adult. c) sinus rhythm with a rate of less than 80 beat per minute in an adult. 6) Does atrial flutter look like the following image? a) TRUE b) FALSE, IT IS AN ARRHYTHMIA c) FALSE, IT IS A VENTRICULAR TACHYCARDIA 7) WHAT IS A PERSON'S NORMAL HEART RATE? a) 80-120 BPM b) 30-40 BPM c) 60-100 BPM 8) Prolonged PR segment always indicates acute myocardial infarction. a) TRUE b) FALSE 9) Supraventricular tachycardia usually presents narrow QRS complexes. a) TRUE b) FALSE 10) The T wave corresponds to? a) to depolarization of the left and right ventricles. b) to the electrical impulse that travels through the atria. c) to a repolarization of the ventricles. 11) Sinus rhythm without heart block is a) is a sinus rhythm with a prolonged PR interval > 0.20 seconds b) Risk of malignant arrhythmias c) Physiological bradycardia 12) Atrial fibrillation a) very irregular heart rate b) very regular heart rate 13) Asystole a) It is commonly known as a “narrow line.” b) It is commonly known as a “flat line.” c) It is commonly known as a “crooked line.” 14) Chaotic wave pattern and absence of pulse a) ventricular fibrillation b) Pulseless electrical activity c) Supraventricular tachycardiaç 15) Strange widened QRS complexes, absence of P waves, and usually a heart rate greater than 100 Beat per minute. a) Asystole b) Ventricular tachycardia c) Fibrilación auricular 16) Extremely rapid atrial rhythm with narrow QRS complexes when the impulse originates above the bundle branches (above the ventricles). a) sinus tachycardia b) Sinus bradycardia c) Supraventricular tachycardia 17) The QRS complex corresponds to a) It is synonymous with atrial depolarization and usually corresponds to atrial contraction. b) It generally corresponds to the contraction of the ventricles. c) repolarization of the ventricles. 18) characterized by an appearance of: a) SAW TEETH b) chaotic waves c) intermittent dropped QRS 19) No electrical activity is seen on the cardiac monitor and does not respond to electrical defibrillation. a) Asystole b) Pulseless electrical activity c) SINUS RHYTHM

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