15 results
Tuberculosis Testing

LATENT TB
• LTBI is diagnosed when an asymptomatic patient has a positive TST or IGRA
(TST) False-negative ... because false-negative ... sample = 95% • A negative ... #Diagnosis #Workup ... LatentTB #ActiveTB #InfectiousDiseases
Systemic Lupus Erythematosus (SLE) - Diagnosis and Management Summary
 • Epidemiology: 10-180/100,000, Typically Age 20-40, F:M
Erythematosus (SLE ... are evocative of SLE ... • Immunologic Workup ... pANCA anti-MPO - Negative ... life-threatening • Treatment
Disseminated Gonococcal Infection - Diagnosis and Management Summary

Bacteremic spread of the Gram-negative diplococci Neisseria gonorrhoeae. History
spread of the Gram-negative ... susceptibility testing ... • Laboratory testing ... typically part of the workup ... #Microbiology #InfectiousDiseases
Drug Induced Lupus vs SLE
Drug Induced Lupus (DIL):
 • Epidemiology: -10% of all lupus cases, drug-dependent,
• Immunologic Workup ... constitutional symptoms • Treatment ... • Immunologic Workup ... pANCA anti-MPO - Negative ... life-threatening • Treatment
Commonly Used Diagnostic Tests for Celiac Disease

Tissue transglutaminase (tTG) IgA antibodies
 - Most reliable noninvasive test
disease) - May be negative ... HLA-DQ8 - High negative ... Reflects response to treatment ... Celiac #Disease #Testing ... Tests #Diagnosis #Workup
Capnocytophaga
Pathogen: Capnocytophaga
 • 9 species, C. canimorsus responsible for the majority of infections
 • Gram-negative rod,
infections • Gram-negative ... ), Malignancy, SLE ... fusiform gram-negative ... Treatment: • 50% ... microbiology #zoonotic #infectiousdiseases
Tularemia - Diagnosis and Management Summary
Francisella tularensis - Aerobic fastidious gram-negative Coccobacillus - Zoonotic Infection
 •
fastidious gram-negative ... photophobia, increased tearing ... Culture & GS, PCR Treatment ... diagnosis #management #treatment ... #infectiousdiseases
Group A Strep Pharyngitis, also known as  Strep Throat. 

In addition to symptomatic presentation, a
prescribed one of the treatment ... highly SPECIFIC (see ... throat swab is negative ... penicillin allergy testing ... StrepThroat #Management #Treatment
Rheumatology Workup - Laboratories Studies in Rheumatic Diseases

• Septic arthritis - Gram stain and culture of
Rheumatology Workup ... - CCP antibody testing ... ANAs; thus, a negative ... Arthritis #laboratory #workup ... #diagnosis #testing
Blood Culture-Negative Infective Endocarditis (BCNIE)
Definition: No etiology found after 3 separate blood cultures remain negative for
Blood Culture-Negative ... microbiological techniques Work-up ... See charts - ... #differential #workup ... #infectiousdiseases