Term
|
Definition
| the ability to initiate an impulse |
|
|
Term
| What region has the ability to initiate an impulse |
|
Definition
|
|
Term
| What region is the pacemaker center |
|
Definition
|
|
Term
|
Definition
| takes of if SA node fails |
|
|
Term
| four phases of an action potential |
|
Definition
phase 0: depolarization (SYSTOLE) na moves into cell
Phase 1: Early re-polarization- closure of fast Na channels
Phase 2: Plateau - ca moves into cells/Na leaves
Phase 3: Repolarization (DIASTOLE) k moves back into cells na moves out
Phase 4: resting membrane potential (electrochemical gradient returns to normal) |
|
|
Term
| Steps of 3-5 lead placement (7 steps) |
|
Definition
- Shave sites
-Wipe skin with alcohol
- Treat with adhesive
- remove pads and attach wires
-place pads on prepped sites
-SET ALARMS
-record |
|
|
Term
| How often do you rotate lead placement sites and change pads? |
|
Definition
|
|
Term
| How long should the PR interval be? |
|
Definition
|
|
Term
| What if PR interval greater than .20 seconds |
|
Definition
|
|
Term
|
Definition
|
|
Term
| How long is each small box and big box on ECG strip |
|
Definition
|
|
Term
|
Definition
|
|
Term
| how long should QRS interval be? |
|
Definition
|
|
Term
| if QRS is longer than .12 it is bundle branch block |
|
Definition
|
|
Term
| QT interval should be less than...? |
|
Definition
| .55 seconds (or half of RR) |
|
|
Term
| if QT interval is longer than .60 it could be related to what? |
|
Definition
|
|
Term
| how to determine ECG rhythms with regular heart rhythms? |
|
Definition
count number of boxes between r waves
(# little boxes divided by 1500 or big boxes divided by 300) |
|
|
Term
| how to determine ECG rhythms with irregular heart rhythms? |
|
Definition
| find 3-second hash marks at top of strip. #R's x 10 = heart rate |
|
|
Term
| how to determine heart rate |
|
Definition
| number of R's in 6 second strip x 10 |
|
|
Term
| how to determine if a strip has a regular rhythm? |
|
Definition
| if there is a p wave for every QRS |
|
|
Term
| What is the most common kind of atrial dysrhythmia |
|
Definition
|
|
Term
| what changes with Cardiac Output with atrial fibrillation |
|
Definition
|
|
Term
| how many times is atria discharging with atrial fibrilation |
|
Definition
|
|
Term
| What is atrial rate of atrial flutters |
|
Definition
|
|
Term
| what is change of cardiac output with atrial flutter |
|
Definition
| 30% decrease in cardiac output |
|
|
Term
| What is heart rate of someone with SVT (supra ventricular atrial dysrhythmia)? |
|
Definition
|
|
Term
| Two characteristics of ECG in someone with SVT |
|
Definition
|
|
Term
| Seven treatments for Atrial fibrillation? |
|
Definition
cardioversion
digoxin
anticoagulation
amiodarone
CA Channel blockers
Beta blockers
mg |
|
|
Term
| two treatments for Atrial Flutter |
|
Definition
|
|
Term
|
Definition
valsalva
cardioversion
adenosine
beta blockers
digoxin
overdrive pacing
ablation |
|
|
Term
| Three kinds of atrial dysrhythmias? |
|
Definition
atrial fibrilation
atrial flutter
SVT |
|
|
Term
|
Definition
PVC (premature ventricular contraction)
Ventricular tachycardia |
|
|
Term
| two characteristics of premature ventricular contraction |
|
Definition
|
|
Term
| two characteristics of ventricular tachy |
|
Definition
3 or more PVC in a row
heart rate > 140 |
|
|
Term
| treatment of vent. Tachy? |
|
Definition
|
|
Term
| What is the first thing to do if you see asystole |
|
Definition
|
|
Term
| three meds and one action that you can give with asytole |
|
Definition
|
|
Term
| The P wave, QRS complex and T wave are all associated with what? |
|
Definition
P wave : activation of atria
QRS: activation of ventricles
T: re-polarization of ventricles |
|
|
Term
| What does atrial fibrillation look like on ECG |
|
Definition
| irregular rhythm, every QRS is different |
|
|
Term
| why is digoxin commonly used with atrial fibrillation? |
|
Definition
| decreases impulse to slow heart rhythm. |
|
|
Term
| What does atrial flutter look like? |
|
Definition
| p waves run fast. (3,2 or 1 p wave in the middle) |
|
|
Term
| what does (PAC) premature atrial contraction look like? |
|
Definition
| premature beat causes p wave to come early, causing link of compensatory pause. |
|
|
Term
| 2 characteristics of atrial brady? |
|
Definition
regular rhythm
rate less than 60 |
|
|
Term
| What is SVT and what does it look like? |
|
Definition
supraventricular tachycardia
normal rhythm
so fast you don't see P wave, only QRS |
|
|
Term
|
Definition
| fed from alternative pacemaker |
|
|
Term
| What is the easiest way to tell difference between atrial and ventricular dysrhythmias? |
|
Definition
Atrial: normal or shortened QRS
Ventricular: wide QRS |
|
|
Term
| characteristic of PVC (vent. dysrhythmia) |
|
Definition
| no P wave prior to rhythm, very wide QRS |
|
|
Term
| What is Vtach considered to be? |
|
Definition
|
|
Term
|
Definition
|
|
Term
| do you shock a heart in asytole? |
|
Definition
| NO never shock dead heart |
|
|
Term
| besides asytole when do you never shock a heart? |
|
Definition
| during T wave (vent. re-polarization) |
|
|
Term
|
Definition
| prolonged PR interval but no missing beats because atrial impulses are still transmitted to ventricles |
|
|
Term
|
Definition
| When there is blocking of conduction between atrial and ventricles |
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