Nick Shared "CV" - 42 Picmonics

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CV

Class I Antiarrhythmics (Na+ Channel Blockers) Overview
Indications
Arrhythmias
Local Anesthesia
Mechanism of Action
Block or Slow Conduction
Block Na+ Channels
Raise Threshold
State Dependent
Contraindication
Hyperkalemia
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1 min
Class IA Antiarrhythmics (Na+ Channel Blockers)
Indications
Arrhythmias
Mechanism of Action
Increase AP, ERP, and QT interval.
Drugs
Disopyramide
Procainamide
Drug-induced Lupus
Quinidine
Cinchonism
Shared Side Effects
Thrombocytopenia
Torsades de Pointes
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1 min
Class IB Antiarrhythmics (Na+ Channel Blockers)
Indications
Arrhythmias
After Myocardial Infarction
Mechanism of Action
Affect Ischemic Tissue
Decrease AP duration
Drugs
Mexiletine
GI Upset
Lidocaine
CNS Depression
Tocainide
Phenytoin
Hirsutism
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2 mins
Class IC Antiarrhythmics (Na+ Channel Blockers)
Indications
Used as Last Resort
V-Tach
Mechanism of Action
No Effect on AP Duration
Drugs
Propafenone
Flecainide
Contraindications
Post-Myocardial Infarction
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56 secs
Class III Antiarrhythmics (K+ Channel Blockers)
Indications
Arrhythmias
Mechanism of Action
Increase AP Duration, ERP, and QT Interval
Drug Names
Amiodarone
Check Function Tests
Dirty Drug
Ibutilide
Dofetilide
Sotalol
Beta-Blocker
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2 mins
Class IV Antiarrhythmics (Ca2+ Channel Blockers)
Indications
SVT
Subarachnoid Hemorrhage
Mechanism of Action
Decrease Conduction Velocity
Increase PR Interval and ERP
Drugs
Verapamil
Diltiazem
Nimodipine
Side Effects
Cardiovascular
Constipation
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2 mins
Calcium Channel Blockers (Verapamil and Diltiazem)
Mechanism of Action
Slows AV Conduction
Indications
Angina Pectoris
Arrhythmias
Essential Hypertension
Side Effects
Bradycardia
Hypotension
Constipation
Peripheral Edema
Gingival Hyperplasia
Nursing Consideration
Medication Education
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2 mins
Adenosine (Adenocard)
Mechanism
Slows AV Conduction
Indications
Supraventricular Tachycardia (Paroxysmal)
Side Effects
Bradycardia
Flushing
Dyspnea
Considerations
Rapid IV Push
Caffeine and Theophylline Decrease Effectiveness
Dipyridamole May Intensify Effects
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2 mins
Lidocaine
Mechanism
Blocks Na+ Channels
Indications
Ventricular Arrhythmia
Anesthetic
Side Effects
Paresthesias
Seizures
Respiratory Depression
Drowsiness
Consideration
Anesthetic Effects Extended with Epinephrine
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1 min
Magnesium Sulfate
Mechanism
Muscle Relaxant
Indications
Preterm Labor Contractions
Preeclampsia
Side Effects
Warm Feeling
Hypotension
Decreased Deep Tendon Reflexes (DTRS)
Decreased Respiratory Rate
Decreased Urine Output
Paralytic Ileus
Antidote
Calcium Gluconate
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2 mins
Parts of an ECG
PQRST
P Wave
Atrial Depolarization
QRS Complex
Ventricular Depolarization
T Wave
Ventricular Repolarization
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2 mins
ECG Interpretation
Rate
Rhythm
P Waves
Upright, Rounded, Before Every QRS
PR Interval (< 0.20 seconds)
Normal QRS (< 0.12 seconds)
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2 mins
ECG: Sinus Bradycardia
Rate
< 60 bpm
Rhythm
Regular
P Wave
Present, Upright, Every QRS
PR Interval
< 0.20 seconds
QRS Interval
< 0.12 seconds
Treatment
Atropine
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1 min
ECG: Sinus Tachycardia
Rate
> 100 bpm
Rhythm
Regular
P Wave
Present, Upright, Every QRS
PR Interval
< 0.20 seconds
QRS Interval
< 0.12 seconds
Treatment
Treat Underlying Cause
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2 mins
ECG: Atrial Flutter
Rate
Variable
Rhythm
Regular or Irregular
P Wave
Saw Tooth, Multiple Before Every QRS
PR Interval
Non-measurable
QRS Interval
< 0.12 seconds
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2 mins
ECG: Atrial Fibrillation
Rate
Variable Rate
Rhythm
Irregular Rhythm
P Wave
No P Wave
PR Interval
No PR Interval
QRS Interval
QRS < 0.12 Seconds
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1 min
Torsades de Pointes
Characteristics
Polymorphic Ventricular Tachycardia
Prolonged QT Interval
QRS Twist Around Isoelectric Line
Causes
Congenital
Antibiotics
Antiarrhythmics
Antipsychotics
Antidepressants
Electrolyte Deficiencies
Complications
Ventricular Fibrillation
Treatment
Stable: Magnesium Sulfate
Unstable: Defibrillation
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3 mins
Wolff-Parkinson-White Syndrome
WPW Pattern vs. WPW Syndrome
Pathophysiology
Ventricular Pre-excitation Syndrome
Accessory Conduction Pathway
Signs & Symptoms
Supraventricular Tachycardia
Atrial Fibrillation
Diagnosis
Shortened PR Interval
Delta Wave
Widened QRS
Treatment
No Treatment if Asymptomatic
Treat Arrhythmia
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3 mins
Deep Vein Thrombosis (DVT) Characteristics
Mechanism
Virchow's Triad
Venous Stasis
Endothelial Damage
Hypercoagulability
Symptoms
Tenderness
Homan's Sign
Warmth
Redness
Swelling
Asymptomatic
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1 min
Abdominal Aortic Aneurysm
Screening
Screen Males 65-75 Who've Ever Smoked
Diagnosis
Ultrasound
Treatment
Observation
Asymptomatic and < 5 cm in Size
Surgical Repair
> 5.5 cm in Abdomen
Emergent Surgery
Ruptured or Symptomatic
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2 mins

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