59 results
Causes of Seizures - Differential Diagnosis Algorithm
Unprovoked - Epilepsy:
 • Focal: Simple, Complex
 • Generalized: Absence,
Causes of Seizures ... vasoconstriction syndrome ... Recreational drugs, Poisons ... Neurocysticercosis, PML ... Diagnosis #Algorithm #Causes
Mydriasis and Miosis - Differential Diagnosis Framework

Causes of Mydriasis:
Dilated pupils (mydriasis) more than 7mm
 • Unilateral
Diagnosis Framework Causes ... Ill paralysis (PCA ... response, Serotonin syndrome ... Hypothermia Causes ... Miosis: Horner's syndrome
Primary Metabolic Alkalosis - Differential Diagnosis Algorithm
Volume Depleted - 2° hyperaldosteronism
 • Low Urine Cl-: Vomiting,
NGT suction, Low Cl ... • High Urine Cl ... , Gitelman Syndrome ... , Liddle syndrome ... Algorithm #Nephrology #Causes
Hypokalemia Differential Diagnosis Algorithm
Hypertensive:
 • High Al, Low R - Primary aldosteronism
 • High Al, High
acid, Liddle's Syndrome ... Normotensive: • UCl ... Post-hypercapnia • UCl ... , Gitelman's syndrome ... Algorithm #nephrology #causes
Leg Pain - Differential Diagnosis Framework

Bone/Joint Causes of Leg Pain:
 • Fracture
 • Arthritis
 • Gout/pseudogout
Bone/Joint Causes ... Patellofemoral pain syndrome ... Hematoma Venous Causes ... • Trauma • Crush ... blunt trauma, crush
Causes of Rhabdomyolysis - Differential Diagnosis
 • Drugs & Toxins (Statins, alcohol, cocaine)
 • Direct Muscle
Causes of Rhabdomyolysis ... Damage (Trauma/crush ... malignant neuroleptic syndrome ... Differential #Diagnosis #Causes
Hantavirus
Pathogen: Hantavirus - Rodents are the primary reservoir
Transmission:
 • Shed in the urine, feces, saliva of
barns and lake houses ... Cardiopulmonary Syndrome ... chills, myalgias, nausea ... • Hantavirus PCR ... • Autopsy PCR
Metabolic Alkalosis - Differential Diagnosis Algorithm - Urinary Chloride
 • Cl- responsive metabolic alkalosis
Kidney loss of Cl ... - Loss of Cl ... diuretic use, Bartter syndrome ... , Gitelman syndrome ... Diagnosis #Algorithm #causes
Cauda Equina Syndrome Overview

Cauda Equina Syndrome:
 • Prevalence: 1:33,000-100,000 ppl/yr
 • Incidence: 1.5-3.4 million ppl/yr
 •
Cauda Equina Syndrome ... 33,000-100,000 ppl ... 1.5-3.4 million ppl ... - Emergency Causes ... differential #diagnosis #causes
Anticonvulsants as Mood Stabilizers: Mechanism and Side-effect
Examples: Valproate, Carbamazepine, Lamotrigine
 • Mild anticholinergic effect -> Drowsiness
reaction -> Benign Rash ... Stevens-Johnson Syndrome ... Systemic effect -> Nausea ... hyponatremia, rash