Term
| What are the 3 characteristics of cardiac conduction? |
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Definition
1. Automaticity
2. Ectopic foci
3. Re-entry |
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Term
What charge and electrolyte go with:
1. Polarization
2. Depolarization
3. Repolarization |
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Definition
1. Polarization (-)
2. Depolarization (+) Na enters, Ca follows
3. Repolarization (-) K exits |
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Term
| Ca in depolarization = ____ |
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Definition
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Term
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Definition
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Term
| Meds that block Na help with ___. |
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Definition
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Term
| Meds that block K ___ the ___ ___. |
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Definition
| Extend the refractory period |
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Term
| Meds that block Ca control ___. |
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Definition
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Term
| Na channel blockers (Lidocaine) are used for what? (5) |
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Definition
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Term
| Na Channel blockers (Lidocaine) |
|
Definition
Caution: HF, renal, hep
Use after Epi/Vasopressin
Quinidine causes diarrhea, DOUBLES dig |
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Term
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Definition
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Term
| Beta blockers (-olol) are used for what? (4) |
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Definition
A-fib
Sinus tach
V-tach
Tachydysrhythmias |
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Term
| Selective and Nonselective Beta blockers |
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Definition
Selective: Esmolol
Nonselective: Inderal, Sotalol |
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|
Term
|
Definition
Contraindicated: Heart block, low HR, AV block, asthma
Hold if <55 BPM or low BP |
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Term
| K Channel Blockers (Amniodarone) are used for what? (3) |
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Definition
A-fib
Ventricular dysrhythmias
V-tach |
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Term
| K-channel blockers (Amniodarone) |
|
Definition
Delay repol
Increase Dilantin 3x (10-20)
Pneumonia-like infection
Oral wks, IV mins |
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Term
| K Channel Blockers (Amniodarone) dosages |
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Definition
Pulseless VT/VF: 300 mg IV, repeat 3-5 min. w/ 150 mg
VT: 150 mg/10 min w/ filter if not emergency |
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Term
| Ca Channel Blockers (Cardizem/Diltiazem) are used for what? (4) |
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Definition
PSVT
A-fib
A-flutter
V-tach (Narrow QRS) |
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Term
| Ca Channel Blockers (Cardizem, Diltiazem) |
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Definition
Control rate
Cardizem- only meds that reverses pathology of Afib
Cardizem, Verapamil: Dysrhythmias |
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Term
| Name 5 miscellaneous dysrhythmia drugs |
|
Definition
Covert
Adenosine
Digoxin
Epinephrine
Atropine |
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|
Term
|
Definition
A-fib
Last ditch
Infuse over 10 minutes |
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|
Term
|
Definition
Defibrillates
1-2 sec IV bolus, immediately flush line w/ NS to get bolus to heart
Needs 2 people by the line |
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|
Term
|
Definition
Slows rate (AV node)
Increases contractility |
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|
Term
|
Definition
Adrenergic agonist
Pulseless V-tach: 1 mg/3-5 min
Bradycardia: 2-10 mcg/min til the cows come home! |
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|
Term
|
Definition
Anticholinergic- Can't see, pee, spit,or sh**
Bradycardia, asystole
Contraindicated: Glaucoma, GI obs, uropathy, prostate |
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Term
| Atropine dosing and side effects |
|
Definition
IV, IM, SC, ETT
0.5 mg IV/SC
Sfx: Tachyarrhythmias, PVCs, dry mouth, AV dissociation, urine retention |
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Term
| Order of care for a dysrhythmia |
|
Definition
1. Chest compression
2. Epinephrine/Vasopressin
3. Defibrillation
4. Lidocaine, amnio
5. Repeat Epi when ready |
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