ACLS precourse self-assessment – Rhythms Exam Questions and Answers 100% Correct
Sinus Bradycardia - ANSWER-heart rate less than 50 bpm
monomorphic ventricular tachycardia - ANSWER-Ventricular tachycardia where the QRS complex has the same morphology or fixed shape.
Supraventricular tachycardia (SVT) - ANSWER-A faster than normal heart rate beginning above the heart's two lower chambers.
Second degree AV block (Mobitz type 1) - ANSWER-Wenckebach phenomenon, typically occurs at the AV node. Characterized by successive prolongation of the PR interval until an atrial impulse s not conducted to the ventricles. The P wave corresponding to the atrial impulse is not followed by QRS complex (P-R interval gets progressively longer). QRS complex drops.
Atrial Fibrillation (A-Fib or AF) - ANSWER-atria "quiver" chaotically and the ventricles beat irregularly
Sinus Tachycardia - ANSWER->100 (100-150)
normal sinus rhythm; increased heart rate.
Atrial Flutter - ANSWER-Rapid, irregular atrial contractions due to an abnormality or atrial excitation. Stable tachycardia. (QRS < 0.12) narrow.
Ventricular fibrillation (V-fib or VF) - ANSWER-very rapid uncoordinated fluttering contractions of the ventricles. (pg. 116)
Second Degree AV Block Mobitz Type 2 - ANSWER--PR interval is constant
-atrial conduction to ventricle is intermittent (intermittent non-conduction of p waves with
constant PR interval on conducted beats. -Can be constant ratio of atrial to ventricular depolarizations (ex. 2 P waves to 1 QRS).
-Occurs below level of AV node
-QRS complex drops
normal sinus rhythm - ANSWER-heart rhythm originating in the sinoatrial node with a rate in patients at rest of 60 to 100 beats per minute
Complete AV block (third-degree AV block) - ANSWER-most clinically significant, most likely to cause cardiovascular collapse and require immediate pacing.
Sinus Bradycardia - ANSWER-heart rate less than 50 bpm
monomorphic ventricular tachycardia - ANSWER-Ventricular tachycardia where the QRS complex has the same morphology or fixed shape.
Supraventricular tachycardia (SVT) - ANSWER-A faster than normal heart rate beginning above the heart's two lower chambers.
Second degree AV block (Mobitz type 1) - ANSWER-Wenckebach phenomenon, typically occurs at the AV node. Characterized by successive prolongation of the PR interval until an atrial impulse s not conducted to the ventricles. The P wave corresponding to the atrial impulse is not followed by QRS complex (P-R interval gets progressively longer). QRS complex drops.
Atrial Fibrillation (A-Fib or AF) - ANSWER-atria "quiver" chaotically and the ventricles beat irregularly
Sinus Tachycardia - ANSWER->100 (100-150)
normal sinus rhythm; increased heart rate.
Atrial Flutter - ANSWER-Rapid, irregular atrial contractions due to an abnormality or atrial excitation. Stable tachycardia. (QRS < 0.12) narrow.
Ventricular fibrillation (V-fib or VF) - ANSWER-very rapid uncoordinated fluttering contractions of the ventricles. (pg. 116)
Second Degree AV Block Mobitz Type 2 - ANSWER--PR interval is constant
-atrial conduction to ventricle is intermittent (intermittent non-conduction of p waves with
constant PR interval on conducted beats. -Can be constant ratio of atrial to ventricular depolarizations (ex. 2 P waves to 1 QRS).
-Occurs below level of AV node
-QRS complex drops
normal sinus rhythm - ANSWER-heart rhythm originating in the sinoatrial node with a rate in patients at rest of 60 to 100 beats per minute
Complete AV block (third-degree AV block) - ANSWER-most clinically significant, most likely to cause cardiovascular collapse and require immediate pacing.
