Heart dysrhythmias Flashcards
NSR
Rate:
Rhythm:
P wave:
PR interval:
QRS:
Rate: 60-100
Rhythm: regular
P wave: present
PR interval: 0.12-0.20
QRS: normal
Treatment for NSR
Nothing
Sinus bradycardia
Rate:
Rhythm:
P wave:
PR interval:
QRS:
Rate: 40-60
Rhythm: regular
P wave: present
PR interval: 0.12-0.20
QRS: normal
Treatment for sinus bradycardia
Atropine 0.5mg IVP q3mins to max 3mg
Sinus tachycardia
Rate:
Rhythm:
P wave:
PR interval:
QRS:
Rate: 100-160
Rhythm: regular
P wave: present
PR interval: 0.12-0.20
QRS: normal
Treatment of sinus tachycardia
Vagal maneuvers
Beta Blockers
Sinus arrhythmia
Rate:
Rhythm:
P wave:
PR interval:
QRS:
Rate: 60-100 (could be brady)
Rhythm: irregular
P wave: present
PR interval: 0.12-0.20
QRS: normal
Treatment for Sinus arrhythmias
Nothing
Atrial flutter
Rate:
Rhythm:
P wave:
PR interval:
QRS:
Atrial Rate: 250-400
Rhythm: regular or irregular
P wave: Sawtoothed
PR interval: N/A
QRS: normal
Treatment for atrial flutter
Ca channel blockers or cardioversion
Atrial fibrillation
Rate:
Rhythm:
P wave:
PR interval:
QRS:
Rate: Atrial 400+
Rhythm: irregular
P wave: none
PR interval: N/A
QRS: normal
Treatment for atrial fibrillation
Ca channel blockers or cardioversion
Supraventricular Tachycardia PSVT
Rate:
Rhythm:
P wave:
PR interval:
QRS:
Rate: 140-250
Rhythm: Regular
P wave: none
PR interval: N/A
QRS: normal
Treatment for PSVT
Vagal maneuver
Adenosine
Cardioversion
Ventricular tachycardia
Rate:
Rhythm:
P wave:
PR interval:
QRS:
Rate: regular
Rhythm: 100-250bpm
P wave: none
PR interval: N/A
QRS: wide, w/ consistent width and amplitude
Treatment for V tach
Stable w/ pulse: amiodarone
Unstable w/ pulse: cardioversion
Pulseless: Defibrillation, CPR, epinephrine 1mg IVP q3min
Ventricular Fibrillation
Rate:
Rhythm:
P wave:
PR interval:
QRS:
Rate: chaotic
Rhythm: N/A
P wave: none
PR interval: N/A
QRS: absent
Treatment of Vfib
Defibrillation, CPR, epinephrine 1mg IVP q3min
NSR with Premature atrial contraction (PAC)
NSR but with Premature beat
NSR with Premature ventricular contraction (PVC)
NSR but with premature beat that is wide and distorted
Treatment for PAC
Typically none, if frequent check electrolytes
Treatment for PVC
Typically none, if frequent check electrolytes
May need antiarrhythmic (amiodarone or lidocaine)
Causes of PAC
Benign
Lytes
About to be A Fib
Cardiac stimulants
Stress
Causes of Afib
Underlying heart disease
Lytes
hypoxia
cardiac surgery
Causes of A flutter
Underlying heart disease
lytes
Causes of PSVT
Digitalis toxicity
Heart disease
Overexertion
EMotional stress
stimulants
Causes of PVCs
Stimulants
lytes
hypoxia
CVD
fever
exercise
stress
Causes of v tach
MI
CAD
significant lytes
HF
drug toxicity
Causes of V fib
no cardiac output, life threatening