65 results
Causes of Relative Bradycardia - Note the propensity for intracellular organisms.
Infectious: 
Legionella, Psittacosis, Q fever, Typhoid
Causes of Relative ... , Typhoid fever, ... , Dengue fever, ... #bradycardia #Causes ... differential #diagnosis #infectiousdiseases
Childhood Immunization Schedule: Why we immunize
 • Diphtheria Toxin -> URT inflammation causes pseudomembrane with hardened
pharyngeal erythema, fever ... pharyngeal erythema, fever ... attack meninges -> Fever ... Sudden onset of fever ... pruritic rash, fever
TRALI vs TACO - Transfusion Reactions
TRALI:
 • Epidemiology: 0.1% of transfused patientsl
 • Risk factors: Critical
blood donor • Pathophysiology ... without other cause ... explain symptoms • Fever ... transfusion • Pathophysiology ... pulmonary edema) • Fever
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
loss, lethargy, fever ... • Fever, weight ... be normal • Fever ... factor • May cause ... differential #diagnosis #infectiousdiseases
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
• Secondary Causes ... deficiency • Liver ... mountain spotted fever ... Differential #Diagnosis #hematology ... #rheumatology #
Hantavirus
Pathogen: Hantavirus - Rodents are the primary reservoir
Transmission:
 • Shed in the urine, feces, saliva of
barns and lake houses ... • Prodrome: fever ... chills, myalgias, nausea ... #microbiology #infectiousdiseases
Anaplasma Infection - Anaplasma phagocytophilum
Pathophysiology: 
 • Obligate, intracellular bacteria
 • Transmitted via blacklegged tick —
phagocytophilum Pathophysiology ... after bite • Fever ... is rare (< 10% cases ... ), cough (30% cases
Causes of Pericardial Effusion - Differential Diagnosis
Infectious:
 • Viral: Enterovirus, Herpesvirus, Adenovirus, Parvovirus
 • Bacterial: Mycobacterium
Causes of Pericardial ... Non-Infectious: • Rheumatologic ... Mediterranean Fever ... Differential #Diagnosis #Causes
Pathogenesis of Rheumatic Fever

Pathogenesis of rheumatic fever. 
1. GAS pharyngitis leads to antigenic presentation of pathogenic
Pathogenesis of Rheumatic Fever ... Pathogenesis of rheumatic fever ... antibodies which can cause ... #Rheumatic #Fever ... #Pathophysiology
Hemophagocytic Lymphohistiocytosis (HLH)
Pathophysiology: Triggering factor (infection,...)→Activation of CD8 T cells (IFN-y) → Excessive activation of macrophages
Lymphohistiocytosis (HLH) Pathophysiology ... • Clinical: fever ... , ↓ Fibrinogen level ... Drugs, Unknown cause ... treatment #summary #rheumatology