Two conditions must exist to suspect bundle branch block. First, ...

[Metfan725]

Two conditions must exist to suspect bundle branch block. First, the QRS complex must have an abnormal duration (0.12 seconds or more in width), and second _____.
 
  a. an RSR' complex must be seen in leads V1-V6
  b. a QS pattern must be seen in leads I, II, and III
  c. a slurred upstroke of the QRS complex must exist
  d. the QRS complex must arise as the result of supraventricular activity

Question 2

Which of the following are chest leads?
 
  a. Leads I, II, and III
  b. Leads I and aVL
  c. Leads V1, V2, V3, V4, V5, and V6
  d. Leads I, II, III, aVR, aVL, and aVF

[xiaomengxian]

Answer to Question 1

Thanks for the answer, I sent you a PM for another one.

Answer to Question 2

C
The chest leads are identified as V1, V2, V3, V4, V5, and V6.

[Metfan725]

Gracias!

[6ana001]

Thanks for the timely response, appreciate it