483 results
Antiarrhythmics Pharmacology Summary
Cardiac Conduction Phases:
Phase 0 - Ventricular Depolarization:
 • Na+ channels open leading to a
Classification: CLASS ... duration - CLASS ... prolong AV node repolarization ... interval (delays time repolarization ... prolong AV node repolarization
Antiarrhythmics - Vaughan Williams Classification:
CLASS 1 - Sodium Channel Blockers:
 • MOA: Block fast Na+ channels
Classification: CLASS ... and magnitude of depolarization ... prolong AV node repolarization ... interval (delays time repolarization ... prolong AV node repolarization
Class I Antiarrhythmics and their Key Pharmacologic Properties

Class IA = Quinidine, Procainamide, Disopyramide ("Quarter PounDer")
Class IB
Class I Antiarrhythmics ... Properties Class ... Mayo, Pickle") Class ... involved in phase 3 repolarization ... • Prolongs repolarization
Antiarrhythmics - Vaughan Williams Classification
Class I (Ia, Ib, Ic) - Na+ Channel Blockade
 • Slows depolarization
Classification Class ... Blockade • Slows depolarization ... Widens QRS complex Class ... Blockade • Slows depolarization ... Blockade • Slows depolarization
Differential Diagnosis for ST Segment Elevations
 - ACUTE STEMI 
 - PULMONARY EMBOLISM 
 - LBBB
ACUTE STEMI - PULMONARY ... - BENIGN EARLY REPOLARIZATION
Hyperkalemia shortens repolarization; changes in the T wave provide the earliest clues to hyperpotassemia.
 - At
Hyperkalemia shortens repolarization ... 6.0 mEq/L, rapid repolarization ... causes peaked T ... in conduction causes ... wave to produce classic
Acute Pulmonary Embolism - Labeled POCUS Findings 

This patient presented with a-fib and shortness of breath.
Acute Pulmonary ... Embolism - Labeled POCUS ... This POCUS illustrates ... some of the classic ... Sign #Clinical #POCUS
Pulmonary Hypertension - Classification, Evaluation, POCUS Assessment

#PHTN #Pulmonary #Hypertension #Classification #Evaluation #POCUS #Assessment #Groups
Pulmonary Hypertension ... Classification, Evaluation, POCUS ... Assessment #PHTN #Pulmonary ... Classification #Evaluation #POCUS
POCUS Findings in Acute Pulmonary Embolism
- McConnell's Sign
- TAPSE
- D-Shaped Septum
- Abnormal RV:LV Ratio

#Pulmonary #Embolism #AcutePE
POCUS Findings in ... Acute Pulmonary ... RV:LV Ratio #Pulmonary ... AcutePE #Accuracy #POCUS
Causes of Pulmonary Fibrosis

#Pulmonary #Fibrosis #Causes #Differential #Diagnosis
Causes of Pulmonary ... Fibrosis #Pulmonary ... #Fibrosis #Causes