36 results
Algorithm for Investigation of Abnormal Coagulation Tests
- Prolonged PT
- Prolonged aPTT and Prolonged PT
- Prolonged aPTT

Dr.
Abnormal Coagulation Tests ... Abnormal #APTT #Laboratory ... #Hematology #Diagnosis ... #Workup
Laboratory Testing in Hemolytic Anemia

Intravascular vs Extravascular Hemolysis
Reticulocytes
Unconjugated bilirubin
LDH
Peripheral smear
Haptoglobin
Urine hemosiderin
Urine hemoglobin
Carboxyhemoglobin

#Hemolytic #Anemia #Laboratory #Testing #workup
Laboratory Testing ... Hemolytic #Anemia #Laboratory ... #Testing #workup ... #diagnosis #hematology
Mixing Study
 • Clotting tests can be abnormal due to either a clotting factor deficiency, or
Study • Clotting tests ... • Clotting tests ... Study #diagnosis #hematology ... pathophysiology #hematology ... #laboratory
Bayesian combination of 4T score with Heparin PF4 antibody titer to obtain the post-test probability of
obtain the post-test ... Bayesian #Diagnosis #Hematology ... Thrombocytopenia #Laboratory
Disseminated Gonococcal Infection - Diagnosis and Management Summary

Bacteremic spread of the Gram-negative diplococci Neisseria gonorrhoeae. History
Laboratory Diagnosis ... the preferred test ... typically part of the workup ... • Test all patients ... joints, knees, wrists
Gastrointestinal Evaluation of Iron Deficiency Anemia
In patients with anemia, diagnose iron deficiency if:
 • Ferritin <
• Additional laboratory ... tests may be needed ... chronic kidney tests ... Test for celiac ... Gastrointestinal #Evaluation #workup
Commonly Used Diagnostic Tests for Celiac Disease

Tissue transglutaminase (tTG) IgA antibodies
 - Most reliable noninvasive test
Used Diagnostic Tests ... reliable noninvasive test ... first-level screening test ... Disease #Testing #Laboratory ... #Workup #Table
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
ANA level above laboratory ... antibody level above laboratory ... determined by Positive test ... Direct Coombs’ test ... #Diagnosis #Rheumatology
Approach to the Hypercoagulable State
Arterial thromboembolism
→ Cardiac rhythm monitoring, Echocardiogram, Vascular imaging
→ Test for APS, particularly
Vascular imaging → Test ... - No other workup ... Hypercoagulable #Workup ... #hematology #diagnosis ... #algorithm #hematology