59 results
Antiarrhythmics - Vaughan Williams Classification
Class I (Ia, Ib, Ic) - Na+ Channel Blockade
 • Slows depolarization
Vaughan Williams Classification ... Class I (Ia, Ib ... rate and prolongs PR ... rate and prolongs PR ... VaughanWilliams #Classification
Pericarditis can be seen on EKG with diffuse ST elevations without reciprocal changes along with diffuse
Pericarditis can ... along with diffuse PR ... treatment for pericarditis ... in refractory cases ... #Acute #Pericarditis
Pulse Abnormalities - Differential Diagnosis Algorithm
Unequal/DeIayed:
 • Obstructive arterial disease (ie. Atherosclerosis)
 • Aortic dissection
 •
Pulse Abnormalities ... Differential Diagnosis Algorithm ... • Constrictive Pericarditis ... Differential #Diagnosis #Algorithm ... #causes
Antiarrhythmics - Vaughan Williams Classification:
CLASS 1 - Sodium Channel Blockers:
 • MOA: Block fast Na+ channels
Vaughan Williams Classification ... : CLASS 1 - Sodium ... depolarization • ↑ PR ... velocity) - ↑ PR ... #Pharmacology #Classification
Unilateral Acute Vision Loss - Differential Diagnosis Algorithm
Painful - Cornea
 • Keratopathy
Painful - No Abnormalities of
Differential Diagnosis Algorithm ... Painful - No Abnormalities ... pupil) Painful - Abnormalities ... Differential #Diagnosis #Algorithm ... #Causes #Ophthalmology
Traditionally, congestive heart failure has been classified according to severity of symptoms, first formulated by the
of structural abnormalities ... ups that cause class ... III and class IV ... HeartFailure #Staging #Classification ... #Stages #Classes
Myocarditis - Diagnosis and Causes
 • Clinical presentation: Pseudo-acute coronary syndrome, Cardiac failure <3 rnonths, Cardiogenic
Diagnosis and Causes ... assessment: EKG abnormalities ... hypokinesia, associated pericarditis ... differential #Diagnosis #Causes
Causes of Hypoxemia- Differential Diagnosis Algorithm
Ventilation/perfusion Mismatch
 • Airway Disease (Asthma, COPD)
 • Vascular (PE*)
 •
Causes of Hypoxemia ... Differential Diagnosis Algorithm ... Weakness • Pleural Abnormalities ... • Chest Wall Abnormalities ... Differential #Diagnosis #Algorithm
Causes of Chronic Dyspnea - Differential Diagnosis Algorithm
Pericardial
 • Effusion
 • Cardiac Tamponade*
 • Constriction
Myocardial
 •
Causes of Chronic ... Differential Diagnosis Algorithm ... Bronchiectasis Pleural Abnormalities ... Chest Wall Abnormalities ... Differential #Diagnosis #Algorithm
Lead AVR on ECG
1. Acute myocardial infarction: ST elevation > 1.5 mm in aVR, indicative of
Pericarditis: PR ... elevation in aVR • PR ... includes ACS vs pericarditis ... - Concurrent PR ... wave in aVR • Classic