485 results
Faget Sign - Pulse-Temperature Dissociation
Causes of Relative Bradycardia
 • Infectious Causes: Legionella, Psittacosis, Q fever, Typhoid
Dissociation Causes ... • Infectious Causes ... , Typhoid fever, ... Non-Infectious Causes ... differential #diagnosis #causes
Faget's Sign & Liebermeister's Rule
Pulse-Temperature Dissociation
EVERY 1 F RISE IN TEMPERATURE -> HR INCREASES 8-10 BPM
INFECTIOUS
BPM INFECTIOUS CAUSES ... • Typhoid Fever ... OTHER CAUSES ... There are specific cases ... #differential #causes
Causes of Relative Bradycardia - Note the propensity for intracellular organisms.
Infectious: 
Legionella, Psittacosis, Q fever, Typhoid
Causes of Relative ... Psittacosis, Q fever ... , Typhoid fever, ... , Dengue fever, ... #bradycardia #Causes
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
Fever vs Hyperthermia
Fever:
 • Regulated in the hypothalamic thermoregulatory center
 • "Set point" raised by prostaglandin
Fever vs Hyperthermia ... Fever: • Regulated ... Endotoxins, Toxins, Cytokines ... rapidly fatal • Causes ... BrighamChiefs #Fever
Giant Cell (Temporal) Arteritis: Pathogenesis and investigations
Risk Factors:
 - Unclear environmental triggers (may be viral, not
alter inflammatory cytokine ... GCA is almost never ... /Symptoms: - Fever
Eosinophils (Eos) and hypereosinophilia (HE)
Caused by eosinophilopoietic cytokines
Common causes:
 - Drug reaction
 - Helminth infection
 -
hypereosinophilia (HE) Caused ... eosinophilopoietic cytokines ... Common causes: ... disease Rare causes ... Differential #Diagnosis #Causes
Fever Patterns - Differential Diagnosis Framework

Continuous Fever:
Temp > 38°C with only 1 degree fluctuation in 24
Fever Patterns - ... Continuous Fever ... (Step ladder: fever ... or no fever • ... Non-Infectious Causes
Causes of Fever of Unknown Origin (FUO) - Differential Diagnosis
 • Infection: Extrapulmonary tuberculosis, Abscess, Endocarditis,
Causes of Fever ... Brucellosis, Q fever ... vasculitis to cause ... , Factitious fever ... Differential #Diagnosis #causes
Causes of Fever by System #Diagnosis #EM #IM #Fever #Differential #Ddxof
Causes of Fever ... Diagnosis #EM #IM #Fever