Pharmacotherapeutics for Advanced Nursing Practice, 1st. Ed., Demler & Rhoads, 2018 | Nurse Practitioner (NP) School Study Aid
Class IA Antiarrhythmics (Na+ Channel Blockers)
- Arrhythmias
- Increase AP, ERP, and QT interval.
- Disopyramide
- Procainamide
- Drug-induced Lupus
- Quinidine
- Cinchonism
- Thrombocytopenia
- Torsades de Pointes
Class IB Antiarrhythmics (Na+ Channel Blockers)
- Arrhythmias
- After Myocardial Infarction
- Affect Ischemic Tissue
- Decrease AP duration
- Mexiletine
- GI Upset
- Lidocaine
- CNS Depression
- Tocainide
- Phenytoin
- Hirsutism
Class IC Antiarrhythmics (Na+ Channel Blockers)
- Used as Last Resort
- V-Tach
- No Effect on AP Duration
- Propafenone
- Flecainide
- Post-Myocardial Infarction
Class III Antiarrhythmics (K+ Channel Blockers)
- Arrhythmias
- Increase AP Duration, ERP, and QT Interval
- Amiodarone
- Check Function Tests
- Dirty Drug
- Ibutilide
- Dofetilide
- Sotalol
- Beta-Blocker
Lidocaine
- Blocks Na+ Channels
- Ventricular Arrhythmia
- Anesthetic
- Paresthesias
- Seizures
- Respiratory Depression
- Drowsiness
- Anesthetic Effects Extended with Epinephrine
Adenosine (Adenocard)
- Slows AV Conduction
- Supraventricular Tachycardia (Paroxysmal)
- Bradycardia
- Flushing
- Dyspnea
- Rapid IV Push
- Caffeine and Theophylline Decrease Effectiveness
- Dipyridamole May Intensify Effects
Calcium Channel Blockers (Verapamil and Diltiazem)
- Slows AV Conduction
- Angina Pectoris
- Arrhythmias
- Essential Hypertension
- Bradycardia
- Hypotension
- Constipation
- Peripheral Edema
- Gingival Hyperplasia
- Medication Education
Digoxin Mechanism and Indication
- Direct inhibition of Na K ATPase
- Indirect inhibition of Na Ca exchanger
- Increase Ca in cell
- Positive Inotropy
- CHF
- Stimulates Vagus Nerve
- Decreased conduction at AV node
- Atrial Fibrillation
Acute Digoxin Toxicity
- Hyperkalemia
- Cholinergic (Nausea, Vomiting, Diarrhea)
- Blurry Yellow Green Vision with Halo of Light
- Arrhythmia
- Bradycardia
- Prolonged PR interval
- Decreased QT
- Scooping on EKG
- T Wave Inversion
Digoxin Toxicity Treatment
- Activated Charcoal
- Slowly Normalize K+
- Digibind (Anti-Digoxin Fab)
- Magnesium Sulfate
- Lidocaine
- Cardiac Pacing
Magnesium Sulfate
- Muscle Relaxant
- Preterm Labor Contractions
- Preeclampsia
- Warm Feeling
- Hypotension
- Decreased Deep Tendon Reflexes (DTRS)
- Decreased Respiratory Rate
- Decreased Urine Output
- Paralytic Ileus
- Calcium Gluconate
Dobutamine
- Beta-1 Agonist
- Inotropic
- Heart Failure
- Tachycardia
- Arrhythmias
- Closely Monitor Patients
- Other Meds May Increase Potency