NEU NRSG 3420 EKG EXAM QUESTIONS AND ANSWERS WITH
COMPLETE SOLUTIONS VERIFIED RATED 100% PASS
Atrial Fibrillation
"irregularly irregular"
-R-R is widened
-No effective atrial contraction
-Erratic p-waves and QRS waves
Ventricular rate usually 120-200 bpm
-apical and radial pulse deficit (slower radial)
-20-25% LOSS OF ATRIAL KICK
-risk of stroke, CVA
TX: Warfarin, may give b-blocker for decreased CO and Dig for severe = cardio
version
Atrial Flutter
-Saw tooth shape
-rapid, regular atrial rate (250-400 bpm)
-Atrial rate faster than AV node can conduct so QRS is slowed
- QRS = reg/irreg and config = normal
- can't identify T or P waves
TX: adenosine to slow HR, severe = cardio version
, Premature Atrial Complex (PAC)
-"my heart skipped a beat"
- QRS & duration are usually normal
- incomplete compensatory response
- HR is usually irregular
- Treatment usually not needed
- May have pulse deficit
- TX: Treat underlying cause - Hypokalemia (supp K+), too much caffeine (cut
back on caffeine)
Sinus Bradycardia
- Looks like sinus rhythm but HR is below 60
Sinus Tachycardia
- Looks like sinus rhythm but HR is over 100
Asystole
- Fatal
- No pulse
Ventricular Fibrilation
- "Fatal arrythmia"
- life threatening dysrhythmia
- most common cause of sudden cardiac death ... cardiac arrest
- Ventircle rate: greater than 300 bpm
- Rhythm: extremely irregular
COMPLETE SOLUTIONS VERIFIED RATED 100% PASS
Atrial Fibrillation
"irregularly irregular"
-R-R is widened
-No effective atrial contraction
-Erratic p-waves and QRS waves
Ventricular rate usually 120-200 bpm
-apical and radial pulse deficit (slower radial)
-20-25% LOSS OF ATRIAL KICK
-risk of stroke, CVA
TX: Warfarin, may give b-blocker for decreased CO and Dig for severe = cardio
version
Atrial Flutter
-Saw tooth shape
-rapid, regular atrial rate (250-400 bpm)
-Atrial rate faster than AV node can conduct so QRS is slowed
- QRS = reg/irreg and config = normal
- can't identify T or P waves
TX: adenosine to slow HR, severe = cardio version
, Premature Atrial Complex (PAC)
-"my heart skipped a beat"
- QRS & duration are usually normal
- incomplete compensatory response
- HR is usually irregular
- Treatment usually not needed
- May have pulse deficit
- TX: Treat underlying cause - Hypokalemia (supp K+), too much caffeine (cut
back on caffeine)
Sinus Bradycardia
- Looks like sinus rhythm but HR is below 60
Sinus Tachycardia
- Looks like sinus rhythm but HR is over 100
Asystole
- Fatal
- No pulse
Ventricular Fibrilation
- "Fatal arrythmia"
- life threatening dysrhythmia
- most common cause of sudden cardiac death ... cardiac arrest
- Ventircle rate: greater than 300 bpm
- Rhythm: extremely irregular
