64 results
Argyll Robertson Pupil
Definition:
 - Irregular and small (1-2mm) pupil
 - Light-near dissociation (accommodation remains intact)
 -
- Light-near dissociation ... and classical association ... Robertson #Pupil #neurology ... #diagnosis #ophthalmology
Faget's Sign & Liebermeister's Rule
Pulse-Temperature Dissociation
EVERY 1 F RISE IN TEMPERATURE -> HR INCREASES 8-10 BPM
INFECTIOUS
Pulse-Temperature Dissociation ... pulse-temperature dissociation ... #Temperature #Dissociation ... #diagnosis #differential ... #causes
Faget Sign - Pulse-Temperature Dissociation
Causes of Relative Bradycardia
 • Infectious Causes: Legionella, Psittacosis, Q fever, Typhoid
Pulse-Temperature Dissociation ... Causes of Relative ... #Temperature #Dissociation ... #differential #diagnosis ... #causes
Adie's Pupil
What? Unknown nature & benign
 • Regular and mildly dilated pupil (4-6mm);
 • Light-near dissociaton;
• Light-near dissociaton ... females Differential Diagnosis ... no light-near dissociation ... • Other causes ... #PhysicalExam #neurology
Cannon A Waves
 • Caused by atrial contracting against a closed tricuspid valve
 • Atrioventricular dissociation
Cannon A Waves • Caused ... Atrioventricular dissociation ... it indicates AV dissociation ... Cannon #AWaves #diagnosis
Parinaud's Syndrome
What?
 - Impaired upgaze
 - Light-near dissociation
 - Convergence retraction nystagmus
 - Eyelid retraction (Collier's
- Light-near dissociation ... Parinauds #Syndrome #diagnosis ... #pineal #neurology
Oxyhemoglobin Dissociation Curve 

Left Shift - decreased unloading of O2 at tissue level (i.e.  increased
Oxyhemoglobin Dissociation ... Oxyhemoglobin #Dissociation ... #Differential #Causes ... #Diagnosis
Prolonged neuromuscular blockade - Differential Diagnosis
- Drugs, Acid-base Disorders, Metabolic, Neurologic, Electrolyte abnormalities

By Mark Harris, MD
- Differential Diagnosis ... Disorders, Metabolic, Neurologic ... #Differential #Diagnosis ... #Anesthesiology ... #Causes #complications
Adie's Pupil on Physical Exam

Adie's pupil is a neurological disorder characterized by a tonically dilated pupil
i.e., light-near dissociation ... It is caused by ... infection which causes ... ophthalmology #neurology
Parinaud's syndrome
What?
 • Light-near dissociation (tectal pupils)
 • Convergence retraction nystagmus
 • Eyelid retraction (Collier's sign)
• Light-near dissociation ... Parinauds #syndrome #neurology ... #diagnosis