22 results
Features of a Sickle Cell Crisis 
Sickle-cell disease - an autosomal recessive blood disorder.
Characterized by red
a Sickle Cell Crisis ... Crises can be precipitated ... The underlying pathophysiology ... Can be triggered ... Features #Signs #Symptoms
Hordeolum vs Chalazion

Hordeolum (Stye):
 • Location: Most commonly found at or near an eyelash follicle
 •
eyelash follicle • Cause ... upper lid • Cause ... Clinical #Diagnosis #Management ... Stye #Chalazion #Comparison ... #Table
Dizziness and Vertigo Algorithm
Presyncope:
 • Feels "faint" or like they are going to "pass out"
 •
"pass out" • Symptoms ... may be triggered ... Associated with nausea ... differential #diagnosis #neurology ... #management
Cold Urticaria
Prevalence - 0.05% in the population
Disease onset - Mostly 2nd to 4th decades of life
Causes
decades of life Causes ... stings Disease trigger ... and duration of symptoms ... #rheumatology #comparison ... #table
Leukostasis vs Tumor Lysis Syndrome
Leukostasis:
 • Pathophysiology: Large, immature blasts and high WBC count cause hyperviscosity
Leukostasis: • Pathophysiology ... high WBC count cause ... hyperviscosity syndrome • Triggers ... into serum • Triggers ... TLS #diagnosis #management
Fever vs Hyperthermia
Fever:
 • Regulated in the hypothalamic thermoregulatory center
 • "Set point" raised by prostaglandin
prostaglandin E2 • Triggered ... Body temperature rises ... rapidly fatal • Causes ... #Hyperthermia #comparison ... #diagnosis #management
Intraoperative Anaphylaxis - Guidelines for Crises in Anaesthesia
• Unexplained hypotension
• Unexplained bronchospasm (wheeze may be absent
Guidelines for Crises ... as patient is stable ... re-administration of possible trigger ... Guidelines for crises ... Checklist #Diagnosis #Management
Bullous Pemphigoid - Diagnosis and Management Summary
Pathophysiology: Autoantibody-mediated damage to epithelial basement membrane -> separation of
Diagnosis and Management ... Summary Pathophysiology ... Clinical Signs/Symptoms ... - Erosions and crusts ... erosions in ~20% Management
TRALI vs TACO - Transfusion Reactions
TRALI:
 • Epidemiology: 0.1% of transfused patientsl
 • Risk factors: Critical
blood donor • Pathophysiology ... without other cause ... ARDS to explain symptoms ... hematology #diagnosis #comparison ... #table
Sarcoidosis - Diagnosis and Management Summary
Epidemiology
1) High incidence in Scandinavian countries (11-24 cases per 100,000 individuals
Diagnosis and Management ... survival is 93-95% Pathophysiology ... Self-limiting, chronic but stable ... Sarcoidosis #Diagnosis #Management ... #Signs #Symptoms