The Calgary Guide to Understanding Disease @TheCalgaryGuide
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Hypersensitivity: Summary
Type I Hypersensitivity:
 • Immunological Mediator: lgE
 • Immunological Target: Allergen Molecules
 • Ex: Antibiotic
Immunological Target: Allergen ... fever, Urticaria, Allergic ... reaction, Myasthenia Gravis ... , Graves' Disease ... #Allergy #Allergic
Type I Hypersensitivity: Pathogenesis and clinical findings
Definition: Production of lgE Antibodies that bind to harmless allergens
Type I Hypersensitivity ... degranulation, leading ... to an allergic ... Sensitization" to Allergen ... #Immunology #pathophysiology
Low Ankle Sprain: Pathomechanics and Clinical Findings

Grading Ligament Sprains
l: Minimal ligament disruption, mild swelling & tenderness,
Clinical Findings Grading ... ligament substance leading ... #Sports #MSK #orthopedics ... #Grading #Grades ... #Diagnosis #pathophysiology
Type IV Hypersensitivity: Pathogenesis and clinical findings
Definition: Unique because it is entirely T-Cell mediated; exposure to
Type IV Hypersensitivity ... mediated; exposure to allergen ... Allergic reaction ... Initial exposure to allergen ... #Immunology #pathophysiology
Classification of Pelvic Ring Fractures: Mechanisms, Clinical Features and Complications
 • Anterior Posterior Compression (APC) -
cyclist) - APC Grade ... 2.5cm - APC Grade ... auto) - LC Grade ... #Grading #Orthopedics ... complications #pathophysiology
Hypersensitivity: Definitions
 • Type I - Production of lgE Abs that bind to harmless allergens and
Hypersensitivity ... degranulation, leading ... antigen-surface complex, leading ... immune reaction, leading ... #Hypersensitivity
Type III Hypersensitivity: Pathogenesis and clinical findings
Definition: Small antigen-antibody complexes (produced from normal immune response to
Type III Hypersensitivity ... HypersensitivityReaction #Allergy ... #Immunology #pathophysiology
Stress Fracture: Pathogenesis and clinical findings
Abnormal biomechanics, Repetitive impact activities
=> Repetitive subthreshold mechanical loading
=> Bone strain
=>
subthreshold mechanical loading ... from continued loading ... StressFractures #msk #orthopedics ... #pathophysiology
Type II Hypersensitivity: Pathogenesis and clinical findings
Definition: When antigens bind to the body's cell surfaces, forming
Type II Hypersensitivity ... HypersensitivityReaction #Allergy ... #Immunology #pathophysiology
Pathogenesis of Select Causes of Constipation in Adults and in Elderly

 • Mechanical (ex. Bowel Obstruction,
colonic mucosa, leading ... pathways -> Visceral hypersensitivity ... #constipation #pathophysiology