95 results
Tuberculosis Testing

LATENT TB
• LTBI is diagnosed when an asymptomatic patient has a positive TST or IGRA
intermediate risk of disease ... (TST) False-negative ... because false-negative ... #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 ... susceptibility testing ... typically part of the workup ... #Management #Microbiology ... #InfectiousDiseases
Syphilis Serologic Testing - Treponemal and Non-Treponemal Testing Algorithms
Treponemal Testing:
 • Confirmatory or Screening - Detection
Syphilis Serologic Testing ... Non-Treponemal Testing ... #diagnosis #Treponemal ... NonTreponemal #microbiology ... #infectiousdiseases
Diarrhea Workup and Management Algorithm in Transplant Patients
First Tier Microbiologic-Testing:
1. C. difficile PCR (Stool)
2. CMV qPCR
Diarrhea Workup ... Patients First Tier Microbiologic-Testing ... pathogens First Tier Microbiologic-Testing ... negative and diarrhea ... Algorithm #Transplant #diagnosis
"Recommended laboratory HIV testing algorithm for serum or plasma specimens. Based on: Centers for Disease Control
laboratory HIV testing ... on: Centers for Disease ... for the Diagnosis ... #HIV #CDC #Diagnosis ... #Algorithm #InfectiousDisease
Tularemia - Diagnosis and Management Summary
Francisella tularensis - Aerobic fastidious gram-negative Coccobacillus - Zoonotic Infection
 •
fastidious gram-negative ... photophobia, increased tearing ... Treatment: • Severe Disease ... management #treatment #infectiousdiseases ... #microbiology
Commonly Used Diagnostic Tests for Celiac Disease

Tissue transglutaminase (tTG) IgA antibodies
 - Most reliable noninvasive test
Commonly Used Diagnostic ... ) - May be negative ... #Testing #Laboratory ... #Tests #Diagnosis ... #Workup #Table
Chronic Diarrhea - Workup
Osmotic:
 • Consider food diary and trial avoiding certain foods or meds, Consider
Chronic Diarrhea - Workup ... meds, Consider diagnostic ... : • Consider diagnostic ... for celiac disease ... Chronic #Diarrhea #Workup
Gastrointestinal Evaluation of Iron Deficiency Anemia
In patients with anemia, diagnose iron deficiency if:
 • Ferritin <
patients with anemia, diagnose ... Test for celiac disease ... Non-invasive testing ... endoscopy only if: • Negative ... Gastrointestinal #Evaluation #workup
Causes of blood culture negative infective endocarditis

Bartonella spp, Brucella spp, Coxiella burnetii, Chlamydia spp, Tropheryma whipplei,
blood culture negative ... #differential #diagnosis ... causes #culture #negative ... #Endocarditis #InfectiousDiseases ... #Microbiology #