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Flashcards in Atrial Rhythms Deck (6)
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1
Q

What is the key characteristic of wandering pacemaker?

A

Caused when pacemaker role switches from beat to beat between the SA node to the atria and back again

2
Q

What will help you identify a wandering pacemaker?

A

The morphology of the p wave changes based upon the pacemaker site. There is a p wave for every QRS, but it may be more difficult to see depending upon the pacemaker site

3
Q

What are the rules for PAC’s?

A
  1. ) regularity will be interrupted by PAC
  2. ) rate depends on underlying rhythm
  3. ) p wave of PVC WILL DIFFER from underlying p waves; may be flattened or notched
  4. ) PRI 0.12-0.20
  5. ) QRS less than 0.12
4
Q

What are the rules for atrial tachycardia?

A
  1. ) regular
  2. ) 150-250
  3. ) will have atrial p waves, can be lost in T wave
  4. ) PRI 0.12-0.20
  5. ) QRS less than 0.12
5
Q

What are the rules for Afib?

A
  1. ) grossly irregular
  2. ) atrial rate above 350, ventricular varies
  3. ) p waves are discernible/fibrillatory
  4. ) PRI is unable to measure
  5. ) QRS is less than 0.12
6
Q

What are the rules for Aflutter?

A
  1. ) atrial rate is regular
  2. ) atrial rate 250-350
  3. ) p waves are sawtooth
  4. ) PRI is unable to determine
  5. ) QRS is less than 0.12