Bradycardia Flashcards
LBBB
Negative QRS in chest lead 1
Positive QRS in chest lead 6
Broad QRS complex > 0.12
LAD
Poor R wave progression
RBBB
Positive Biphasic QRS in chest lead 1
Negative QRS in chest lead 6
Broad QRS complex > 0.12
Slurred S Wave in Lead 1
Causes
Post MI
PE
RVH (Cor pulmonale)
Digoxin
First degree HB causes
Digoxin
Normal Variant
Hyperkalaemia
Post MI
Second degree HB Mobitz 1 causes
Post MI
Normal variant
Myocarditis
Digoxin
Second degree HB Mobitz 2 causes
Post MI
Sleeping
Digoxin
Hyperkalaemia
Second degree HB Mobitz 2
Outpatient pacemaker if non reversible cause
Complete HB causes
Post MI
Digoxin
Bifasicular block
RBBB+ Right axis deviation
Trifasicular Block
RBBB + RAD + 1st degree HB
SVT Features
Tachycardia
No P Waves
SVT Treatment
Valsalva
Carotid sinus massage (young)
IV Adenosine
BB/CCB
DC Cardioversion
Torsades Treatment
IV Magnesium
VT/VF Treatment
DC Cardioversion
IV Amiodarone
Complete heart block treatment if unstable
IV Atropine
