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
Stack #121700
a MCPHS- Provider I- Ch 27 Management of Pts w/Dysrhythmias
| Question | Answer |
|---|---|
| Dysrhythmias are disorders of | Formation/Conduction of heart’s electrical impulses |
| Diagnose dysrhythmias | ECG |
| Dysrhythmia naming | Site of origin, Mechanism of formation, Conduction involved |
| Sympathetic stimulation vs. Parasympathetic stimulation r/t Heart rate, AV node conduction & Force of myocardial contraction | S:all increase, P:all decrease |
| Chronotropy vs. Dromotropy vs. Inotropy | C:heart rate, D:AV node conduction, I:force of myocardial contraction |
| # of electrodes r/t 12-lead ECG | 10 w/6 on chest and 4 on limbs |
| Limb electrode placement | Non-bony areas w/out major movement |
| 12-lead ECG reflects electrical activity in | Left ventricle |
| Horizontal axis r/t ECG strip | Time & Rate |
| Vertical axis r/t ECG strip | Voltage/Amplitude |
| Positive deflection vs. Negative deflection | P:ECG waveform moves to top of strip, N:ECG waveform moves to bottom of strip |
| P Wave r/t Atria | Atrial depolarization |
| QRS Complex r/t Ventricle | Ventricular depolarization |
| T Wave r/t Ventricle | Ventricular repolarization |
| Atrial Repolarization r/t ECG strip | Occurs during QRS Complex |
| U Wave | Repolarization of Purkinje fibers |
| PR Interval | Time from SA node stimulation to conduction through AV node, Does not include ventricular depolarization |
| ST Segment r/t Isoelectric line | Analyzed to determine if below/above isoelectric line |
| QT Interval | Total time for ventricular depolarization and repolarization |
| Prolonged QT intervals put Pt at risk for | Torsade de pointes |
| Type of dysrhythmia r/t Torsade de pointes | Ventricular |
| TP Interval | No electrical activity, Isoelectric line |
| PP Interval vs. RR Interval | PP:determines atrial rhythm & rate, RR:determines ventricular rate & rhythm |
| Each small box on ECG strip represents | .04 seconds |
| If RR & PP intervals are same or < .8 seconds | Regular rhythm |
| Contributing factors r/t Bradycardia | H’s and T’s |
| 3 H’s r/t Bradycardia | Hypovolemia, Hydrogen ions(acidosis), Hypoglycemia |
| 3 T’s r/t Bradycardia | Toxins, Thrombosis, Trauma |
| Sinus bradycardia vs. Sinus tachycardia vs. Normal sinus rhythm | Only difference is rate |
| Sinus arrhythmia r/t Respiration | Increases w/inspiration, Decreases w/expiration |
| Atrial flutter r/t AV node conduction | Not all atrial impulses are conducted into ventricle, Therapeutic block at AV node |
| P-wave shape r/t Atrial flutter | Saw-tooth shape |
| Occurs when AV node becomes pacemaker | Junctional/Idionodal rhythm |
| When P waves cannot be identified | Supraventricular tachycardia(SVT) |
| SVT indicates only that rhythm is not | Ventricular tachycardia |
| Emergencies r/t Dysrhythmia | Ventricular tachycardia, Ventricular fibrillation, Idioventricular rhythm, Ventricular asystole |
| Ventricular fibrillation characteristics | Absence of: heartbeat, palpable pulse & respirations |
| AHA guidelines r/t Unconscious adults who experience cardiac arrest d/t Ventricular fibrillation | Induce mild hypothermia for 12-24 hours |
| Idioventricular rhythm | Purkinje fibers become pacemaker |
| Ventricular asystole synonym | Flatline |
| AV blocks occur when | AV node conduction is decreased/stopped |
Created by:
rpclothier
Popular Nursing sets