21 results
Antiarrhythmics - Vaughan Williams Classification
Class I (Ia, Ib, Ic) - Na+ Channel Blockade
 • Slows depolarization
Vaughan Williams Classification ... rate and prolongs PR ... interval Class ... rate and prolongs PR ... #Classes #cardiology
Intrapartum Abnormal Fetal HR Tracing - Causes of Bradycardia and Tachycardia - Differential Diagnosis Algorithm
Abnormal Variability:
Abnormal Fetal HR Tracing ... - Causes of Bradycardia ... Differential Diagnosis Algorithm ... Differential #Diagnosis #Algorithm ... #Causes #Obstetrics
Hypokalemia - Differential Diagnosis
Poor Intake 
 - Starvation
 - Anorexia
GI Losses 
 - Vomiting / NG
- Anorexia GI Losses ... Hypomagnesemia Internal ... Low #Potassium #Table ... #Classification ... #Causes
Antiarrhythmics - Vaughan Williams Classification:
CLASS 1 - Sodium Channel Blockers:
 • MOA: Block fast Na+ channels
Vaughan Williams Classification ... depolarization • ↑ PR ... velocity) - ↑ PR ... #Pharmacology #Classification ... #Classes #pathophysiology
Antiarrhythmics Pharmacology Summary
Cardiac Conduction Phases:
Phase 0 - Ventricular Depolarization:
 • Na+ channels open leading to a
Vaughan Williams Classification ... depolarization • ↑ PR ... velocity) - ↑ PR ... #Pharmacology #Classification ... #Classes #pathophysiology
Intrapartum Abnormal Fetal HR Tracing - Causes of Variability & Decelerations - Differential Diagnosis Algorithm
Minimal/Absent Variability
Abnormal Fetal HR Tracing ... - Causes of Variability ... Differential Diagnosis Algorithm ... Differential #Diagnosis #Algorithm ... #Causes #Obstetrics
Hyperkalemia shortens repolarization; changes in the T wave provide the earliest clues to hyperpotassemia.
 - At
repolarization causes ... in conduction causes ... prolonged PR and ... QT intervals ... #Progression #Table
Hypokalemia Differential Diagnosis Algorithm

Low intake 
• poor oral intake 

Renal loss 
• Medication 
• Hypomagnesemia 
•
Differential Diagnosis Algorithm ... Frameworks for Internal ... Differential #Diagnosis #Algorithm ... #Causes #Classification
Causes of Growth Discrepancy: Large for Gestational Age - Differential Diagnosis Algorithm
Maternal Factors:
 • Multiparity
 •
Causes of Growth ... Differential Diagnosis Algorithm ... and Caucasian races ... Differential #Diagnosis #Algorithm ... #Causes #Obstetrics
Lymphomas and Lymphoproliferative Disorders - Differential Diagnosis Algorithm
Hodgkin Lymphoma ~40% - Characteristic For Reed-Sternberg (RS) Cells
Differential Diagnosis Algorithm ... are present • Classic ... B-Cell ~90% • Low Grade ... range • High Grade ... Lymphoproliferative #Disorders #Classification