33 results
Systemic Lupus Erythematosus (SLE) - Diagnosis and Management Summary
 • Epidemiology: 10-180/100,000, Typically Age 20-40, F:M
) - Diagnosis and ... • Immunologic Workup ... pANCA anti-MPO - Negative ... life-threatening • Treatment ... Erythematosus #Diagnosis
Causes of Culture Negative Abscess - Differential Diagnosis Framework
Consider prior antibiotics as a cause of a
Causes of Culture Negative ... - Differential Diagnosis ... Sweet's Syndrome, hidradenitis ... #Differential #Diagnosis ... #InfectiousDiseases
Drug Induced Lupus vs SLE
Drug Induced Lupus (DIL):
 • Epidemiology: -10% of all lupus cases, drug-dependent,
• Immunologic Workup ... • Immunologic Workup ... pANCA anti-MPO - Negative ... life-threatening • Treatment ... #rheumatology #diagnosis
Capnocytophaga
Pathogen: Capnocytophaga
 • 9 species, C. canimorsus responsible for the majority of infections
 • Gram-negative rod,
infections • Gram-negative ... ), Malignancy, SLE ... Treatment: • 50% ... microbiology #zoonotic #infectiousdiseases ... #treatment
Psittacosis 
Pathogen: Chlamydia psittaci - obligate intracellular gram negative
Transmission:
 • Birds are the primary reservoir
 •
intracellular gram negative ... hemoptysis, diarrhea Diagnosis ... first line of treatment ... #microbiology #diagnosis ... #infectiousdiseases
Blood Culture-Negative Infective Endocarditis (BCNIE)
Definition: No etiology found after 3 separate blood cultures remain negative for
BCNIE Diagnostic ... See charts - ... #Endocarditis #diagnosis ... #differential #workup ... #infectiousdiseases
Tuberculosis Testing

LATENT TB
• LTBI is diagnosed when an asymptomatic patient has a positive TST or IGRA
testing (TST) False-negative ... because false-negative ... sample = 95% • A negative ... #Workup #TB #Latent ... LatentTB #ActiveTB #InfectiousDiseases
Coccidiomycosis - Diagnosis
Diagnosis:
 • Mildly elevated peripheral WBC, Eosinophilia (25%), Elevated ESR, Procalcitonin normal (95%)
 •
Coccidiomycosis - Diagnosis ... Diagnosis: • Mildly ... trend response to treatment ... Culture (ElA may be negative ... #workup #infectiousdiseases
Tularemia - Diagnosis and Management Summary
Francisella tularensis - Aerobic fastidious gram-negative Coccobacillus - Zoonotic Infection
 •
Tularemia - Diagnosis ... fastidious gram-negative ... Culture & GS, PCR Treatment ... #management #treatment ... #infectiousdiseases
Commonly Used Diagnostic Tests for Celiac Disease

Tissue transglutaminase (tTG) IgA antibodies
 - Most reliable noninvasive test
Commonly Used Diagnostic ... disease) - May be negative ... Reflects response to treatment ... Laboratory #Tests #Diagnosis ... #Workup #Table