dysrhythmias Flashcards
1
Q
- treats serious ventricular dysrhythmias
- usually reserved for ICU/emergency code blue settings
- IV bolus over 2min
- don’t use solutions containing epinephrine
A
lidocaine
2
Q
therapeutic range for lidocaine
A
1.5-5mcg.dL
3
Q
lidocaine is a
A
sodium channel blocker
4
Q
- slows stimulation beta receptors
- most commonly used for atrial flutter or atrial fibrillation
- IV, PO (long-term)
- AE: bradycardia, hypotension, bronchospasms
- hold HR <60, systolic <90
- CI underlying cardiac conditions (bradycardia, heart block)
A
propanolol
5
Q
propanolol is a
A
beta adrenergic blocker
6
Q
- vasodilates & decreases systemic vascular resistance, prolongs conduction, decreases contractility of L ventricle
- most commonly used w/ ventricular dysrhythmias
- long serum half-life
- IV, PO (long-term)
- AE: fatigue, dizziness, pulmonary toxicity, hepatotoxicity
A
amidarone
7
Q
amidarone is a
A
potassium channel blocker
8
Q
- obstruct movement of calcium into conductive & contractile myocardial cells using slow conduction through SA & AV nodes
- effective in supraventricular tachycardias & atrial fibrillation
- AE: peripheral edema, orthostatic hypotension
A
diltiazem
9
Q
diltiazem is a
A
calcium channel blocker
