Flashcards in Exam 1 - EKG Deck (8)
• Ventricles are firing but pt unable to tolerate this type of conduction for long and will eventually go into asystole – no conduction.
• Always irregular
• Seen in elderly a lot
• Atria is quivering and perfusion is bad
• Typcially put on Digitalis to help SA node firing, along with Coumadin, Lovenox, or Xarelto to help prevent a clot
Occurs before pt goes into systole
Ventricles are firing
Perfusion is not good, leads to ventricular fibrillation
• Atria are doing their own thing and the ventricles are doing their own thing = no communication. This cannot be sustained for very long and will require immediate external pace maker until pt can have a pacemaker inserted. Critical situation.
3rd degree heart block
Normal parameters for PR interval
0.12 to 0.20 seconds
Normal parameters for QRS interval
0.08 to 0.12 seconds