249 results
The parasympathetic and sympathetic systems - Activation and inhibition pathways by organ system

#Sympathetic #Parasympathetic #Systems #Pathways
and inhibition pathways ... Parasympathetic #Systems #Pathways ... Innervation #Receptors #Preganlionic
Anisocoria - Pupillary Defects - Differential Diagnosis Algorithm

Physiological - Simple Anisocoria ( <O.5mm)
 - Anisocoria equal
CONSTRICTION Preganglionic ... IMPAIRED DILATION Preganglionic ... Diagnosis #Algorithm #Causes
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
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
First Generation Anti-Psychotics: Mechanisms and Side Effects
Typical/Conventional Anti-Psychotics - Examples: Haloperidol, Chlorpromazine

ACh M1 antagonist - Block
Hypotension Mesolimbic Pathway ... Mesocortical Pathway ... Tuberoinfundibular Pathway ... Nigrostriatal Pathway ... , and/or limbs caused
Visual Guide to AV Nodal Reentrant Tachycardia (AVNRT) - Pathophysiology
 - Dual AV nodal physiology is
place via fast pathway ... from the slow pathway ... the end of slow pathway ... time the fast pathway ... - In most case