Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
cardiac Rythms
| Question | Answer |
|---|---|
| Normal PR interval range? | 0.12-0.20 |
| Normal QRS duration | 0.06 - 0.12 |
| What does the P wave represent | Atrial depolarization |
| What does the QRS complex represent | Ventricular depolarization (0.06-0.12) |
| CONDUCTION order | SA - NA - Bundle of His- bundle branch - Purkinje fibers |
| ST segment | follows ventricular depolarization and prior to the start of ventricular repolarization, |
| QT | The time for ventricular repolarization to complete |
| Sinus bradycardia Rhythm | regular rhythm, p wave before every QRS, narrow QRS, Rate less than 60 |
| Normal heart rate range | 60-100 bpm |
| First line treatment for symptomatic sinus bradycardia? | Atropine 1mg rapid IVP every 3-5 min (Max dose 3mg) |
| If Atropine is ineffective (unresolve) | transcutaneous pacing, dopamine, epinephrine |
| dopamine infusion range | 5-20 mg/kg/min |
| Sinus Tachycardia | regular rhythm, P wave before every QRS, narrow QRS, rate 100-150 bm |
| Sinus tachycardia treatment | Symptomatic? • Treat Cause • IV Betablockers • Catheter Ablation |
| Supraventricular (SVT) | Rate: greater than 150 -but less than 120 Rhythm: regular, unless reentry; sudden onset QRS s: Usually Narrow, <0.12 P wave: very difficult to discern PR interval: If p wave in front of QRS, PRI <0.12 |
| First step for stable SVT | Vagal maneuvers |
| First dose of Adenosine | 6mg rapid IV push |
| Second dose of Adenosine if needed | IV push rapid |
| unstable SVT treatment | Synchronized cardioversion |
| SVT MANAGEMENT | Vagal Maneuvers • Adenosine 6mg RIVP, 12 mg RIVP • IV Betablocker/ CCB • Synchronized Cardioversion • Consult Cardiology if not done |
| PREMATURE ATRIAL COMPLEX (PAC) | rate: Depends on the underlying rhythm (e.g., sinus tachycardi rhythm: Irregular due to early P waves, creating a PP interval that is shorter than the others. QRS: The QRS that follows the early P wave is usually normal, but it may be abnormal (aberra |
| Common causes of PAC | Stress, caffeine, alcohol, nicotine, hypoxia, electrolyte imbalance |
| Are PAC usually dangerous | Usually benign |
| Priority action for PAC | Assess patient stability |
| AFIB | rate: Atrial rate is 300 to 600 bpm; ventricular rate is usually 120 to 200 bpm in untreated atrial fibrillation Ventricular and atrial rhythm: Highly irregular QRS: Usually normal, but may be abnormal P wave: No discernible P waves; irregular undul |
| ATRIAL FIBRILLATION MANAGEMENT | • Treatment depends on cause, pattern, duration, ventricular response rate, presence of structural or valvular heart disease, etc. • May spontaneously convert within 24-48 hours without treatment • Revolves around preventing embolic events Anticoa |
Created by:
Kerry12