74 results
Commonly Used Diagnostic Tests for Celiac Disease

Tissue transglutaminase (tTG) IgA antibodies
 - Most reliable noninvasive test
specificity - Falsely negative ... disease) - May be negative ... HLA-DQ8 - High negative ... Reflects response to treatment ... #Diagnosis #Workup
Gastrointestinal Evaluation of Iron Deficiency Anemia
In patients with anemia, diagnose iron deficiency if:
 • Ferritin <
Additional laboratory tests ... chronic kidney tests ... Test for celiac ... endoscopy only if: • Negative ... Gastrointestinal #Evaluation #workup
Candidemia Workup and Management - IDSA Guidelines
1) Antibiotics
 • Empiric: Echinocandins (e.g. micafungin) for most patients
Candidemia Workup ... Susceptibilities, Negative ... venous line, it should ... or TEE unless clinical ... #candidiasis #treatment
Relative Afferent Pupillary Defect

This maneuver of intermittent light stimulus is called the alternating light test or
alternating light test ... swinging-flashlight test ... sensitive diagnostic test ... Pupillary #Defect #Neurology ... #Clinical #Video
Rheumatology Workup - Laboratories Studies in Rheumatic Diseases

• Septic arthritis - Gram stain and culture of
Rheumatology Workup ... should be obtained ... ANAs; thus, a negative ... ANA and RF (if clinical ... Arthritis #laboratory #workup
Disseminated Gonococcal Infection - Diagnosis and Management Summary

Bacteremic spread of the Gram-negative diplococci Neisseria gonorrhoeae. History
spread of the Gram-negative ... blood cultures should ... the preferred test ... typically part of the workup ... • Test all patients
Differentiating Benign Paroxysmal Positional Vertigo (BPPV) From Vestibular Neuritis-Labyrinthitis
BENIGN PAROXYSMAL POSITIONAL VERTIGO
 • Age: More common
) • Hallpike test ... : Negative (Note ... patient with a clinical ... patient with a clinical ... Labyrinthitis #diagnosis #neurology
Group A Strep Pharyngitis, also known as  Strep Throat. 

In addition to symptomatic presentation, a
antigen detection test ... , and patients should ... prescribed one of the treatment ... That's because this test ... throat swab is negative
IgG4-Related Disease
Clinical history:  Man, 60 years, multiorgan involvement, unique or multiple inflammatory pseudotumor
4 phenotypes:
 •
Related Disease Clinical ... • Some false negative ... with response to treatment ... specific laboratory tests ... management #phenotypes #workup
Tuberculosis Testing

LATENT TB
• LTBI is diagnosed when an asymptomatic patient has a positive TST or IGRA
result with no clinical ... ) False-negative ... because false-negative ... sample = 95% • A negative ... Testing #Diagnosis #Workup