36 results
Anaphylaxis: Signs and Symptoms
Anaphylaxis: when any egg of three conditions is met:
1. Acute onset of skin/mucosal
exposure to a likely allergen ... exposure to known allergen ... occurrence of late ... #Anaphylaxis #pathophysiology
Causes of Diffuse Lymphadenopathy - Differential Diagnosis Algorithm
Reactive:
 - Systemic Inflammatory
     •
Lymphadenopathy - Differential ... Infectious • EBV ... • Acne • Allergy ... Pancytopenia, WBC differential ... Lymphadenopathy #LAD #Differential
Erythroderma - Diagnostic Algorithm. Pathophysiology: 1) Extensive cutaneous capillary dilation, results in widespread exfoliation of the
Pathophysiology: ... epidermal turnover rate ... accelerated mitotic rate ... Nikolsky #Algorithm #Differential
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
Lung Abscess Pathophysiology ... CXR upright or lat ... in case of PCN allergy ... Lung Abscess Differential ... Abscess #pulmonary #differential
Asthma: immunopathogenesis. 
Allergens attach to, and are taken up by, dendritic cells that he the respiratory
interaction of the allergen ... B cells. which differentiate ... mucus production allergic ... immunopathogenesis #Pathophysiology
Acute Pharyngitis: Differential Diagnosis
Infectious:
 • Respiratory viruses (25-45%)
 • Group A Strep (5-15%)
 • Other bacteria:
Acute Pharyngitis: Differential ... viral syndromes: EBV ... Noninfectious: • Allergic ... #Pharyngitis #Differential
Rapidly Progressive Glomerulonephritis (RPGN)
RPGN has three primary pathophysiologic causes differentiated by immunofluorescence

Immune Complex Mediated (granular staining):
three primary pathophysiologic ... Henoch-SchonIein Purpura Anti-GBM ... to Kidney: Anti-GBM ... involvement: Anti-GBM ... Glomerulonephritis #Vasculitis #differential
Anaphylaxis: Treatments (Acute)
Additional Info:
 • IV steroids may be considered for prevention of late phase reactions.
prevention of late ... provided, as well as allergy ... Treatments #Management #pathophysiology
Bandemia Overview

Normal: < 1%
Clinically significant: > 10%

Band neutrophils are slightly less mature than segmented neutrophils and
Neutrophil (Normal) Differential ... WBC count had a sensitivity ... Bandemia had a sensitivity ... #Bandemia #differential ... CBC #hematology #pathophysiology
CNS Infection in HIV / AIDS - Differential Diagnosis Framework

Principles of HIV-Associated CNS Opportunistic Infections:
 •
in HIV / AIDS - Differential ... • JC-virus PCR sensitivity ... effect/Edema • EBV ... analysis has a sensitivity ... CNS #Infections #differential