13 results
1,3 Beta-D-Glucan and Galactomannan - Pathogens, and Testing Characteristics
1,3 ß-D-glucan:
 • Most fungi excluding mucor and
Pathogens, and Testing ... and pneumocystis False ... other fungi • False ... Galactomannan #Pathogens #Testing ... Characteristics #Sensitivity
Summary of Agents Potentially Contributing to False Positives on Urine Drug Screens (UDS)
Marijuana Metabolites
 • dronabinol,
Contributing to False ... Metabolites • coca ... (High Rate of False ... not result in false ... DrugScreening #UDS #Testing
Tuberculosis Testing

LATENT TB
• LTBI is diagnosed when an asymptomatic patient has a positive TST or IGRA
Tuberculosis Testing ... Tuberculin skin testing ... (TST) False-negative ... recommended because false-negative ... #Diagnosis #Workup
Diagnostic algorithm for the workup of hypercalcemia. The diagnostic workup for patients presenting with hypercalcemia rests
algorithm for the workup ... The diagnostic workup ... value of 0.0115, sensitivity ... Thus, further testing ... Hypercalcemia #Workup
1,3-Beta-D-Glucan and Galactomannan Testing Sensitivity Specificity and False Positives
1,3-Beta-D-Glucan
 • Cell wall component of many fungi
Galactomannan Testing ... Sensitivity Specificity ... and False Positives ... BAL samples • False ... Galactomannan #Fungal #Testing
Commonly Used Diagnostic Tests for Celiac Disease

Tissue transglutaminase (tTG) IgA antibodies
 - Most reliable noninvasive test
test - High sensitivity ... Widely variable sensitivity ... antibodies - Sensitivity ... Celiac #Disease #Testing ... Tests #Diagnosis #Workup
Fungal Biomarkers: Beta-D-Glucan and Aspergillus Galactomannan
Beta-D-Glucan:
 • Polysaccharide cell wall component of many fungi
 • Pathogens:
dermatidis • Sensitivity ... breakthrough IFI in HM • False ... : Mucorales • Sensitivity ... recipients, CGD pts • False ... Frozen ice-pops (in setting
Irritable Bowel Syndrome (IBS) - Diagnosis and Workup Summary
Use a positive diagnostic strategy with minimal testing.
Diagnosis and Workup ... strategy with minimal testing ... Food allergy/ sensitivity ... testing unless ... Syndrome #Diagnosis #workup
Rheumatology Workup - Laboratories Studies in Rheumatic Diseases

• Septic arthritis - Gram stain and culture of
Rheumatology Workup ... - CCP antibody testing ... test but lower sensitivity ... Arthritis #laboratory #workup ... #diagnosis #testing
Stiff Person Syndrome (SPS) - Diagnosis and Management Summary

Epidemiology:
 • Prevalence: 1-2 cases per million -
visualized-tight, rock-hard ... disorders • Testing ... diazepam • EMG testing ... antibody that works