22 results
Causes of Culture Negative Abscess - Differential Diagnosis Framework
Consider prior antibiotics as a cause of a
Causes of Culture Negative ... as a cause of a negative ... Sweet's Syndrome, hidradenitis ... Autoimmune: Crohn's disease ... Differential #Diagnosis #InfectiousDiseases
Commonly Used Diagnostic Tests for Celiac Disease

Tissue transglutaminase (tTG) IgA antibodies
 - Most reliable noninvasive test
specificity - Falsely negative ... ) - May be negative ... HLA-DQ8 - High negative ... Reflects response to treatment ... Tests #Diagnosis #Workup
Chagas Disease (American trypanosomiasis) - Diagnosis and Management Summary
Acute Chagas Disease (8-12 weeks):
 • Mild: Malaise,
Chagas Disease ( ... Summary Acute Chagas ... • Treatment: ... TheIDtrivia #Chagas ... #Microbiology #InfectiousDiseases
Tularemia - Diagnosis and Management Summary
Francisella tularensis - Aerobic fastidious gram-negative Coccobacillus - Zoonotic Infection
 •
fastidious gram-negative ... Culture & GS, PCR Treatment ... : • Severe Disease ... diagnosis #management #treatment ... #infectiousdiseases
Blood Culture-Negative Infective Endocarditis (BCNIE)
Definition: No etiology found after 3 separate blood cultures remain negative for
microbiological techniques Work-up ... See charts - ... exists Infectious Diseases ... #differential #workup ... #infectiousdiseases
Chagas Disease - American Trypanosomiasis - Diagnosis and Management Summary
Chagas disease (American trypanosomiasis) is an infectious
Chagas Disease - ... Management Summary Chagas ... the absence of treatment ... serology, smear negative ... Jcortesizaguirr #Chagas
Systemic Lupus Erythematosus (SLE) - Diagnosis and Management Summary
 • Epidemiology: 10-180/100,000, Typically Age 20-40, F:M
• Immunologic Workup ... pANCA anti-MPO - Negative ... life-threatening • Treatment ... Evolution: Chronic disease
IgG4-Related Disease
Clinical history:  Man, 60 years, multiorgan involvement, unique or multiple inflammatory pseudotumor
4 phenotypes:
 •
IgG4-Related Disease ... • Some false negative ... with response to treatment ... IgG4 #Related #Disease ... management #phenotypes #workup
Tuberculosis Testing

LATENT TB
• LTBI is diagnosed when an asymptomatic patient has a positive TST or IGRA
intermediate risk of disease ... because false-negative ... sample = 95% • A negative ... Testing #Diagnosis #Workup ... LatentTB #ActiveTB #InfectiousDiseases
Septic Arthritis - Diagnosis and Management Summary
Clinical Exam: hot, swollen, pain with passive AND active ROM
necrosis, Lyme disease ... viral arthritis Workup ... arthritis diagnosis Treatment ... staphylococcus, gram negative ... patient admitted for treatment