19 results
COVID-19 PCR and Serology Testing - Timeline
 • Nucleic Acid Test - Most reliable and can
COVID-19 PCR and Serology ... Testing - Timeline ... first 7 days • Antibody ... #antibody #antibodies ... #testing #laboratory
Rheumatology Workup - Laboratories Studies in Rheumatic Diseases

• Septic arthritis - Gram stain and culture of
Rheumatology Workup ... more time for the laboratory ... Rheumatoid #Arthritis #laboratory ... #workup #diagnosis ... #testing #Rheumatology
SLICC SLE Diagnostic Criteria - Systemic Lupus Erythematosus
Clinical and Immunologic Criteria

CLINICAL CRITERIA
 - ACUTE CUTANEOUS LUPUS
SEROSITIS - RENAL - NEUROLOGIC ... ANA level above laboratory ... level above laboratory ... Direct Coombs’ test ... #Diagnosis #Rheumatology
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 ... anti-transglutaminase antibody ... Celiac #Disease #Testing ... #Laboratory #Tests ... #Diagnosis #Workup
Causes of Thrombocytopenia and Platelet Disorders - Differential Diagnosis and Workup
History:
 - Prior platelet count, family
Diagnosis and Workup ... smear, HIV/HCV testing ... K), H. pylori test ... (CVID, WAS), (neurologic ... #hematology
Diarrhea Workup and Management Algorithm in Transplant Patients
First Tier Microbiologic-Testing:
1. C. difficile PCR (Stool)
2. CMV qPCR
Diarrhea Workup ... Ova and Parasite ... Breath test for ... #Diarrhea #Workup ... Transplant #diagnosis #differential
Primary Adrenal Insufficiency:
 • ACTH stimulation test - Synthetic ACTH does not stimulate cortisol secretion because
ACTH stimulation test ... 21-hydroxylase antibody ... Insufficiency #Evaluation #laboratory ... #diagnosis #testing ... endocrinology #workup
Antinuclear Antibody Testing - Nuclear and Cytoplasmic Patterns
Nuclear Patterns:
 • Homogeneous pattern: 
   -
Antinuclear Antibody ... Testing - Nuclear ... body-like: - Neurologic ... #Testing #Nuclear ... Cytoplasmic #Patterns #differential
Recommended initial testing for patients being evaluated for glomerular disease 

24-hour urine collection - Quantify proteinuria.
Recommended initial testing ... C3, C4 - Test for ... antigen, hepatitis C antibody ... #glomerular #testing ... #workup #diagnosis