31 results
Commonly Used Diagnostic Tests for Celiac Disease

Tissue transglutaminase (tTG) IgA antibodies
 - Most reliable noninvasive test
Commonly Used Diagnostic ... specificity - Falsely negative ... ) - May be negative ... HLA-DQ8 - High negative ... #Diagnosis #Workup
Gastrointestinal Evaluation of Iron Deficiency Anemia
In patients with anemia, diagnose iron deficiency if:
 • Ferritin <
patients with anemia, diagnose ... disease with serology ... endoscopy only if: • Negative ... change medical management ... Gastrointestinal #Evaluation #workup
Hyperthyroidism (low TSH, High T4/T3) - Diagnostic Algorithm

Radioactive iodine scan – get if concern for nodular
Graves disease – ... Check pregnancy test ... workup choices ... AND management options ... #Algorithm #Workup
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 ... Breath test for ... above testing negative ... #Transplant #diagnosis
Rheumatology Workup - Laboratories Studies in Rheumatic Diseases

• Septic arthritis - Gram stain and culture of
Rheumatology Workup ... ANAs; thus, a negative ... (to support a diagnosis ... Arthritis #laboratory #workup ... #diagnosis #testing
Disseminated Gonococcal Infection - Diagnosis and Management Summary

Bacteremic spread of the Gram-negative diplococci Neisseria gonorrhoeae. History
and Management ... spread of the Gram-negative ... the preferred test ... typically part of the workup ... • Test all patients
Tuberculosis Testing

LATENT TB
• LTBI is diagnosed when an asymptomatic patient has a positive TST or IGRA
intermediate risk of disease ... ) False-negative ... because false-negative ... sample = 95% • A negative ... #Workup #TB #Latent
Systemic Lupus Erythematosus (SLE) - Diagnosis and Management Summary
 • Epidemiology: 10-180/100,000, Typically Age 20-40, F:M
Erythematosus (SLE) - Diagnosis ... • Immunologic Workup ... pANCA anti-MPO - Negative ... Evolution: Chronic disease ... Erythematosus #Diagnosis
Myasthenic Crisis Checklist - Myasthenia Gravis

Evaluation 
 - Chest X-ray and lung ultrasound (exclude other lung
exclude other lung disease ... - Infectious workup ... Pyridostigmine - New diagnosis ... Do not measure negative ... MyastheniaGravis #Checklist #Management
IgG4-Related Disease
Clinical history:  Man, 60 years, multiorgan involvement, unique or multiple inflammatory pseudotumor
4 phenotypes:
 •
IgG4-Related Disease ... • Some false negative ... specific laboratory tests ... #diagnosis #management ... #phenotypes #workup