Which heart block dysrhythmia is highly unstable and considered a critical condition?
A)First-degree heart block
B)Second-degree AV block, Mobitz type I
C)Second-degree AV block, Mobitz type II
D)Bundle branch block

Question

Quizplus · Accepted Answer

Second-degree AV block, Mobitz type II is a highly unstable heart block dysrhythmia and is considered a critical condition. It can rapidly progress to a complete heart block and cause significant symptoms such as syncope or cardiac arrest. Immediate treatment and interventions such as insertion of a temporary pace maker may be necessary. First-degree heart block and bundle branch block are typically stable and may not require immediate intervention. Second-degree AV block, Mobitz type I can be stable, but progression to a higher degree block is possible and may require intervention.

Which Heart Block Dysrhythmia Is Highly Unstable and Considered a Critical