Question

TYPE A: Choose the ONE BEST answer in each case. Which statement about various cardiac arrhythmias is TRUE? O A typical ventricular rate during an episode of ventricular tachycardia is 1000 min-1 Sinus arrhythmia occurs when the ventricular rate rises to be higher than 100 min-1 In complete atrioventricular block, there is always a complete absence of QRS- complexes from the electrocardiogram. O In ventricular fibrillation, there are multiple activation wavefronts circulating within the ventricles. O In complete atrioventricular block, the mechanism is circus-movement re-entry.

Answer 1

Ans> 1 incorrect as typical ventricular rate during episode of ventricular tachycardia is loomin' Incorrect as sinus tachycardia have higher 100 min-1 - aldia have higher than 3 incorrect as in Atrioventriculare block is absence of av nodal conduction, Complex may be nowwrow or wide . there ORS 4 correct ventricular fibrillation there are multiple activation wavefront wrculating within ventricles 7 5 incorrect mechanism is circuus movement ore enter does not operate in complete heart block operate in ventricular arrhythymea correct, So 4 Scanned with CamScanner