18 results
Helicobacter Pylori Testing  Methods - Sensitivity and Specificity

Serology - 85% - 79% - Does not
Urea breath test ... at UCSF due to cost ... first line test ... #Laboratory #Diagnosis ... #Accuracy
Commonly Used Diagnostic Tests for Celiac Disease

Tissue transglutaminase (tTG) IgA antibodies
 - Most reliable noninvasive test
Commonly Used Diagnostic ... Disease Tissue ... patients with celiac disease ... #Testing #Laboratory ... #Tests #Diagnosis
Gastrointestinal Evaluation of Iron Deficiency Anemia
In patients with anemia, diagnose iron deficiency if:
 • Ferritin <
patients with anemia, diagnose ... • Additional laboratory ... disease with serology ... Non-invasive testing ... Evaluation #workup #diagnosis
Tuberculosis Testing

LATENT TB
• LTBI is diagnosed when an asymptomatic patient has a positive TST or IGRA
TB • LTBI is diagnosed ... • The goal of diagnosing ... intermediate risk of disease ... accuracy Extrapulmonary ... #Diagnosis #Workup
Rheumatology Workup - Laboratories Studies in Rheumatic Diseases

• Septic arthritis - Gram stain and culture of
Studies in Rheumatic Diseases ... more time for the laboratory ... (to support a diagnosis ... Rheumatoid #Arthritis #laboratory ... #workup #diagnosis
Acute Liver Injury - Differential Diagnosis Algorithm

Vascular Causes of Acute Liver Injury: 
 • Hepatic vein:
- Differential Diagnosis ... Venoocclusive disease ... Ascariasis, Choledochal cyst ... extrahepatic source - Tests ... #differential #diagnosis
Behçet's Syndrome
Systemic disease associated with inflammation of multiple organs, small-vessel vasculitis and large-vessel vasculopathy
Epidemiology:
 • Young
to local skin injury ... artery aneurysms Diagnosis ... pathognomonic laboratory ... ) Differential Diagnosis ... Behcet #Syndrome #diagnosis
Bronchiectasis - Summary

What?
• Bronchiectasis is derived from the Greek words bronckos meaning airway and ectasis meaning
bronchial wall injury ... Connective tissue diseases ... parenchyma Diagnosis ... Bronchoscopy Laboratory ... #differential #diagnosis
Primary Adrenal Insufficiency:
 • ACTH stimulation test - Synthetic ACTH does not stimulate cortisol secretion because
ACTH stimulation test ... cases in which injury ... - Serum tests that ... Insufficiency #Evaluation #laboratory ... #diagnosis #testing
Causes of Inaccurate Fecal Occult Blood Test Results 

False Positive gFOBT:
Ingestion of nonhuman heme (eg, meat
Fecal Occult Blood Test ... #OccultBlood #Testing ... #Laboratory #FalsePositive ... FalseNegative #Diagnosis ... #Differential #Accuracy