2964 results
Hypersensitivity: Definitions
 • Type I - Production of lgE Abs that bind to harmless allergens and
cell surfaces causes ... against the antigen ... cell surface, and antigen-surface ... small antibody-antigen ... exposure to allergen causes
Summary table of types of hypersensitivity reactions. 
Type 1
 - Mediators: lgE
 - Antigen Form: Soluble
hypersensitivity reactions ... Form: Soluble antigen ... Allergen-specific lgE causes ... Acute transfusion reaction ... hypersensitivity #reactions
Type IV Hypersensitivity: Pathogenesis and clinical findings
Definition: Unique because it is entirely T-Cell mediated; exposure to
exposure to allergen causes ... Allergic reaction ... Macrophage engulfs antigen ... -> Antigen presentation ... cells recognize antigen
Causes of Interstitial Lung Disease - Differential Diagnosis Algorithm
Idiopathic Interstitial Pneumonia
 • (UIP) Usual Interstitial Pneumonia
Causes of Interstitial ... , worse at the bases ... hypersensitivity) reaction ... to inhaled antigen ... Diseases #ILD #Causes
Hypersensitivity: Summary
Type I Hypersensitivity:
 • Immunological Mediator: lgE
 • Immunological Target: Allergen Molecules
 • Ex: Antibiotic
Penicillin-induced drug reaction ... Immunological Target: Antigen-Ab ... Dermatitis (ie. reaction ... Allergy #Allergic #Reactions
Eosinophils (Eos) and hypereosinophilia (HE)
Caused by eosinophilopoietic cytokines
Common causes:
 - Drug reaction
 - Helminth infection
 -
hypereosinophilia (HE) Caused ... cytokines Common causes ... : - Drug reaction ... infection - Allergic reaction ... disease Rare causes
Allergic Rhinitis: Pathogenesis and clinical findings

1. Allergy Sensitization -> Antigen Exposure -> APC (macrophages, HLA class
Sensitization -> Antigen ... class II) process antigen ... Primary Reaction ... Secondary Reaction ... after the primary reaction
Basophilia - Differential Diagnosis Framework

Basophils < 1% of the total white blood cell count
Basophils function similarly
during an allergic reaction ... Or Inflammatory Reactions ... Chickenpox Other Causes ... Differential #Diagnosis #causes
Hemolysis Classification - Intrinsic and Extrinsic Causes

Commentary: Another way to think of immune hemolysis would be
and Extrinsic Causes ... autoimmune (most of the causes ... hemolytic transfusion reactions ... Differential #Diagnosis #Causes
Drugs Causing Acute Pancreatitis

Class Ia: The medications in which there was a rechallenge and other causes
rechallenge and other causes ... out other common causes ... Class II: Cases ... and atleast4 case ... #Pancreatitis #Causes