20 results
COVID-19 PCR and Serology Testing - Timeline
 • Nucleic Acid Test - Most reliable and can
COVID-19 PCR and Serology ... Testing - Timeline ... • Nucleic Acid Test ... antibody #antibodies #testing ... #laboratory #Timeline
Gastrointestinal Evaluation of Iron Deficiency Anemia
In patients with anemia, diagnose iron deficiency if:
 • Ferritin <
• Additional laboratory ... tests may be needed ... Test for celiac ... Non-invasive testing ... Gastrointestinal #Evaluation #workup
Commonly Used Diagnostic Tests for Celiac Disease

Tissue transglutaminase (tTG) IgA antibodies
 - Most reliable noninvasive test
Used Diagnostic Tests ... negative predictive value ... Celiac #Disease #Testing ... #Laboratory #Tests ... #Diagnosis #Workup
Disseminated Gonococcal Infection - Diagnosis and Management Summary

Bacteremic spread of the Gram-negative diplococci Neisseria gonorrhoeae. History
Laboratory Diagnosis ... susceptibility testing ... the preferred test ... testing of skin ... typically part of the workup
Rheumatology Workup - Laboratories Studies in Rheumatic Diseases

• Septic arthritis - Gram stain and culture of
Rheumatology Workup ... more time for the laboratory ... • Hepatitis B serology ... Rheumatoid #Arthritis #laboratory ... #workup #diagnosis
Antenatal Visits - Testing and Schedule
At Every Visit:	
 • Gestational Age	
 • BP
 • Maternal Weight
Antenatal Visits - Testing ... Protein Blood Work ... Glucose Challenge Test ... Glucose Tolerance Test ... - GDM if ≥1 value
Helicobacter Pylori Testing  Methods - Sensitivity and Specificity

Serology - 85% - 79% - Does not
Helicobacter Pylori Testing ... Specificity Serology ... Urea breath test ... first line test ... #Laboratory #Diagnosis
Tuberculosis Testing

LATENT TB
• LTBI is diagnosed when an asymptomatic patient has a positive TST or IGRA
Tuberculosis Testing ... Tuberculin skin testing ... microscopy • Testing ... positive predictive value ... #Diagnosis #Workup
Some of the techniques used for Antenatal Diagnosis

Amniocentesis 
 - Chromosome/micro-array and DNA analysis 
 -
Fetal infection serology ... transfusion Chorionic villus ... #Antenatal #Testing ... #Diagnosis #Laboratory
Primary Adrenal Insufficiency:
 • ACTH stimulation test - Synthetic ACTH does not stimulate cortisol secretion because
ACTH stimulation test ... - Serum tests that ... Insufficiency #Evaluation #laboratory ... #diagnosis #testing ... endocrinology #workup