259 results
Supraventricular Tachycardias - Pathophysiology
Conduction pathways through SA Node, Atrium, AV Node, Bundle of His, and Ventricle
Pathophysiology Conduction pathways ... through SA Node ... cardiology #conduction #pathways
Cardiac conducting system 
 - Sinoatrial (SA) node normally generates the action potential, i.e. the electrical
- Sinoatrial (SA ... - The SA node ... through internodal pathways ... Heart #Conduction #Pathways
Differential Diagnosis for a Prolonged PT and aPTT
If the PT and the aPTT are both prolonged,
and extrinsic pathways ... in the common pathway ... Causes include : ... Pre-analytical cause ... to the common pathway
Anatomical Differential Diagnosis for Arrhythmias
 • SA node: Sinus bradycardia, Sick Sinus Syndrome (SSS)
 • AV
Arrhythmias • SA ... > 100 bpm) • SA ... Differential #Diagnosis #Causes
Approach to ECGs - Tachy/Bradyarrhythmias
Tachyarrhythmias - HR > 100
Wide
  (1) VT - DANGER
  (2)
tachy not from SA ... /brady) (3) SA ... escaped beats (4) SA ... 200ms from longer pause
Antiemetics and Vomiting

#Pathophysiology #Antiemetics #Locations #Action #Pathways #Nausea #Chemotherapy #TriggerZone #CTZ
Locations #Action #Pathways ... #Nausea #Chemotherapy
Internal Jugular Vein Rouleaux Flow on POCUS

Amazing video of a dilated IJV showing Rouleaux flow. Whenever
Rouleaux Flow on POCUS ... significantly, it causes ... echogenic as in this case ... for underlying cause ... Jugular #IJ #Vein #POCUS
Causes of Abnormal PT and/or aPTT
Prolonged Prothrombin Time (PT)
1. Acquired deficiency of FVII
Causes of Abnormal ... deficiencies: Contact pathway ... Pre-analytical cause ... to the common pathways ... aPTT #Prolonged #Causes
Arrhythmias - Differential Diagnosis Algorithm
May present as: palpitations, dizziness, syncope, chest discomfort
Cardiac Causes:
 - Structural
discomfort Cardiac Causes ... • Accessory pathway ... ) Non-Cardiac Causes ... Diagnosis #Algorithm #causes
Wolff–Parkinson–White syndrome (WPW) is one of several disorders of the electrical system of the heart that
WPW is caused by ... electrical conduction pathway ... this abnormal pathway