Brady Flashcards
Types of Bradycardia Rhythms
1 sinus brady
2 1st degree
3 2nd degree type I
4 2rd degree type 2
5 3rd degree
2nd degree type I aka
wenckebach
or
morbitz I
2nd degree type II aka
morbitz II
3rd degree aka
heart block
1st degree
rate
regularity
P wave
PR interval
QRS width
rate - VARIES
regularity - REGULAR
P wave - PRESENT
PR interval - >0.2 seconds
QRS width - NARROW
1st degree
mnemonic
if R is far from P,
then it’s 1st degree!
2nd degree/morbitz type I/wkenbach
rate
regularity
P wave
PR interval
QRS width
rate - VARIES
regularity - IRREGULAR
P wave - PRESENT
PR interval**PROGRESSIVELY LONGER*
QRS width - NARROW
2nd degree/morbitz type I/wekenbach
mnemonic
longer, longer, longer, drop!
that’s a wekenbach
2nd degree/morbitz type II
rate
regularity
P wave
PR interval
QRS width
rate - VARIABLE
regularity - IRREGULAR
P wave - PRESENT
PR interval CONSISTENT WHEN PRESENT
QRS width - narrow
2nd degree/morbitz type II
mnemonic
if some P’s don’t get through,
we have morbitz II
*the P waves (aka SA nodes) are not making the QRS
3rd degree heart block
rate
regularity
P wave
PR interval
QRS width
rate - VARIES
regularity - REGULAR
P wave - PRESENT
PR interval INCONSISTENT WHEN PRESENT
QRS width - WIDE
3rd degree heart block
mnemonic
if P + Q don’t agree, then 3rd degree
-AV node is blocked
–SA (P wave) + Purkinje still work independently
white have regularities in wave pattern?
1ST + 3RD
which have irregular patterns?
2nd type I + II
1st vs 3rd degree
1st = PR interval is consistently prolonged
3rd = PR is inconsistently present
