22 results
Hypersensitivity: Summary
Type I Hypersensitivity:
 • Immunological Mediator: lgE
 • Immunological Target: Allergen Molecules
 • Ex: Antibiotic
Ex: Antibiotic allergies ... thrombocytopenia, Autoimmune Hemolytic ... anemia, Penicillin-induced ... drug reaction, ... #Types #Classification
Hemolytic Anemia - Differential Diagnosis Algorithm
Hereditary:
 • Peripheral blood smear + DAT + further History
 •
Hemolytic Anemia ... Differential Diagnosis Algorithm ... → Sickle Cell anemia ... autoimmune disease, drugs ... #Diagnosis #Algorithm
Anosmia / Smell Dysfunction - Differential Diagnosis Algorithm
Nasal Obstruction/ URTI:
 • Septal Deviation
 • Allergic Rhinitis
Differential Diagnosis Algorithm ... Deviation • Allergic ... Mellitus • Adrenal Hypofunction ... • Adrenal Hyperfunction ... • Smoking • Drugs
Drugs Implicated in Hemolytic Anemia
 • Hapten (Drug binding to RBC membrane): Penicillin, Cephalosporin, Tetracycline, Tolbutamide,
Drugs Implicated ... in Hemolytic Anemia ... #medications #Hemolytic ... #Anemia #differential ... #pharmacology #table
Causes of Extravascular and Intravascular Hemolysis - Differential Diagnosis Algorithm
Extravascular - Spleen and RES-mediated hemolysis
 -
Differential Diagnosis Algorithm ... delayed HTR • Drug-induced ... • PNH • Drug-induced ... anemia • ... Differential #Diagnosis #Algorithm
Types of hypersensitivity reactions

Type I - lgE-Mediated, Within I Hour (Anaphylaxis)
Type II - IgG or IgM
Hours to Days (Hemolytic ... Anemia) Type ... Rash, SJS) - Amelia ... reactions #Types #Classification ... #Allergy #Diagnosis
Algorithmic Approach to Anemia - Differential Diagnosis Framework by MCV

Microcytic (MCV < 80) "TAILS":
 • Thalassemia
Algorithmic Approach ... -100): • Non-hemolytic ... , CKD • Hemolytic ... Orotic aciduria, Drugs ... #MCV #Algorithm
Causes of Anemia by Mean Corpuscular Volume (MCV) - Differential Diagnosis Algorithm
Low Mean Corpuscular Volume (<80
Differential Diagnosis Algorithm ... • Bleeding • Hemolysis ... Deficiency • Drugs ... #MCV #Classification ... Differential #Diagnosis #Algorithm
Hypersensitivity Types and Their Mechanisms
Type I - lgE - Soluble antigen
 - Allergen-specific lgE antibodies bind
When the specific allergen ... , and drug allergies ... types or during hemolytic ... Hypersensitivity #Types #Classification ... Diagnosis #Reactions #Table
Differential Diagnosis for Hemolytic Anemia
Intrinsic Causes:
 • Enzyme deficiencies ex. G6PD, pyruvate kinase 
 • Hemoglobinopathies
Diagnosis for Hemolytic ... Anemia Intrinsic ... AIHA: warm, cold, drug ... #Anemia #Differential ... Diagnosis #causes #classification