Rhythms in the atria

Question 1

PAC (Premature Atrial Complexes)

Answer 1

• heart beat is early (premature)
  -different p wave shape
  -Normal Pr interval
  -normal QRS

Question 2

Atrial Flutter

Answer 2

Depolarization stays in re-entry
-saw tooth

Question 3

wandering Atrial Pacemaker (WAP)

Answer 3

-3 different p waves
- Pr interval usually normal
-QRS normal

Question 4

Atrial Fib

Answer 4

• no formed p waves
• fast atrial rate
• irregular ventricular response