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cardiology diagnosis ecg ekg classification differential antiarrhythmics bradycardia classes management pharmacology tachycardia avblock avnrt block bradyarrhythmia checklist clinical degree degrees
Bradycardia Diagnostic and Management Algorithm CONSIDER ETIOLOGY (not inclusive): - STRUCTURAL: sick sinus, AV block, ischemia,
and Management Algorithm ... STRUCTURAL: sick sinus, AV ... Hypothyroidism - TOX: beta-blockers ... TREATMENT - Drugs (beta-blockers ... #Bradycardia #Algorithm
Antiarrhythmics - Vaughan Williams Classification: CLASS 1 - Sodium Channel Blockers: • MOA: Block fast Na+ channels
duration CLASS 2 - Beta ... causing ↓SA node and AV ... interval to prolong AV ... alpha & beta adrenergic ... Classification #Classes #pathophysiology
Mobitz Type I (Wenckebach Phenomenon) 2nd Degree AV Block on EKG • P-R interval gradually increases
Phenomenon) 2nd Degree AV ... Block on EKG ... till a dropped beat ... #Block #AVBlock ... cardiology #EKG #ECG #Electrocardiogram
Summary of Heart Blocks 1st Degree Heart Block: • Prolonged PR >200ms (5 small squares). • Narrow
before dropped beat ... after dropped beat ... • Block in AV ... beyond AV node) ... Diagnosis #EKG #electrocardiogram
Antiarrhythmics Pharmacology Summary Cardiac Conduction Phases: Phase 0 - Ventricular Depolarization: • Na+ channels open leading to a
duration CLASS 2 - Beta ... causing ↓SA node and AV ... interval to prolong AV ... alpha & beta adrenergic ... Classification #Classes #pathophysiology
Approach to ECGs - Tachy/Bradyarrhythmias Tachyarrhythmias - HR > 100 Wide (1) VT - DANGER (2)
- treat with beta-agonist ... rhythms (5) AV ... QRS - Proximal AV ... block (lower AV ... EKG #diagnosis #electrocardiogram
Approach to ECGs - Syncope Syndromes Electrolytes • ↑K - brady, peak T, wide QRS, no P,
assoc with 1K, AV ... block • ↓ Mg ... Trifascicular block ... 1st degree heart block ... diagnosis #cardiology #electrocardiogram
Visual Guide to AV Nodal Reentrant Tachycardia (AVNRT) - Pathophysiology - Dual AV nodal physiology is
Tachycardia (AVNRT) - Pathophysiology ... pathway which blocks ... created if the beat ... With the echo beat ... Tachycardia #AVNRT #Pathophysiology
Emergent Hyperkalemia Treatment Algorithm ECG changes, weakness, K+ >6.5 Or renal insufficiency with K >5.5 with cellular
Hyperkalemia Treatment Algorithm ... , bradycardia, AV ... blocks) -> Calcium ... Combo of insulin + beta-agonist ... glucose <100 • Beta-agonist
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