12 results
Commonly Used Diagnostic Tests for Celiac Disease

Tissue transglutaminase (tTG) IgA antibodies
 - Most reliable noninvasive test
Diagnostic Tests for Celiac ... specificity - Falsely negative ... disease) - May be negative ... HLA-DQ8 - High negative ... Tests #Diagnosis #Workup
Gastrointestinal Evaluation of Iron Deficiency Anemia
In patients with anemia, diagnose iron deficiency if:
 • Ferritin <
tests Test for celiac ... endoscopy only if: • Negative ... Gastrointestinal #Evaluation #workup
Legionnaire's Disease - Extrapulmonary organ involvement: CNS: Mental confusion, encephalopathic, headache. Cardiac: Relative bradycardia. GI: Loose
Cardiac: Relative ... Diagnosis #IM #InfectiousDisease ... Legionnaires #Legionella #Algorithm
Approach to Thrombocytosis - Elevated Platelet Count - Differential Diagnosis Algorithm

Peripheral Smear concerning for malignancy?
Differential Diagnosis Algorithm ... hematology for workup ... Vasculitides, IBD, Celiac ... Differential #Diagnosis #Algorithm
Diarrhea Workup and Management Algorithm in Transplant Patients
First Tier Microbiologic-Testing:
1. C. difficile PCR (Stool)
2. CMV qPCR
Diarrhea Workup ... and Management Algorithm ... above testing negative ... #Diarrhea #Workup ... #Management #Algorithm
Blood Culture-Negative Infective Endocarditis (BCNIE)
Definition: No etiology found after 3 separate blood cultures remain negative for
Blood Culture-Negative ... cultures remain negative ... microbiological techniques Work-up ... #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 ... Testing #Diagnosis #Workup ... LatentTB #ActiveTB #InfectiousDiseases
Disseminated Gonococcal Infection - Diagnosis and Management Summary

Bacteremic spread of the Gram-negative diplococci Neisseria gonorrhoeae. History
spread of the Gram-negative ... typically part of the workup ... #Microbiology #InfectiousDiseases
Celiac Disease - Diagnosis Algorithm
IgA TTG has high sensitivity and specificity of ~ 98% and is
Celiac Disease - ... Diagnosis Algorithm ... -A negative test ... Disease #Diagnosis #Algorithm ... gastroenterology #workup
Coccidiomycosis - Diagnosis
Diagnosis:
 • Mildly elevated peripheral WBC, Eosinophilia (25%), Elevated ESR, Procalcitonin normal (95%)
 •
Culture (ElA may be negative ... Coccidioides #Diagnosis #workup ... #infectiousdiseases