38 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
Thyroid Function Tests (TFTs) and Interpretation

 • TSH, Free T4, Free T3
 • T3 Uptake
 •
Thyroid Function Tests ... Thyroid #Function #Tests ... Interpretation #endocrinology ... #diagnosis #laboratory ... #patterns #differential
Hyperthyroidism (low TSH, High T4/T3) - Diagnostic Algorithm

Radioactive iodine scan – get if concern for nodular
specific, so if positive ... Check pregnancy test ... affects diagnostic workup ... Diagnosis #Algorithm #Workup ... #Endocrinology
Gastrointestinal Evaluation of Iron Deficiency Anemia
In patients with anemia, diagnose iron deficiency if:
 • Ferritin <
• Additional laboratory ... tests may be needed ... Test for celiac ... if serology is positive ... Gastrointestinal #Evaluation #workup
Approach to a Positive (+) Rheumatoid Factor (RF)
(+) RF does not always = RA
Rheumatic disorders:
 •
Approach to a Positive ... Rheumatoid #Factor #RF #rheumatology ... #laboratory #differential
Systemic Lupus Erythematosus (SLE) - Diagnosis and Management Summary
 • Epidemiology: 10-180/100,000, Typically Age 20-40, F:M
versus DIL • Laboratory ... • Immunologic Workup ... - Anti-dsDNA - Positive ... Anti-histone - Positive ... Management #Summary #rheumatology
Rheumatology Workup - Laboratories Studies in Rheumatic Diseases

• Septic arthritis - Gram stain and culture of
Rheumatology Workup ... ; if positive, test ... - Positive in ... more time for the laboratory ... #workup #diagnosis
Benign Adrenal Mass - Differential Diagnosis Algorithm
Hyperplasia - Often Bilateral
 • Congenital Adrenal Hyperplasia
 • ACTH
Adrenal Mass - Differential ... Releasing Adenoma (Positive ... Dexamethasone Suppression Test ... :Renin Ratio) Positive ... Diagnosis #Algorithm #Endocrinology
Hemolysis - Diagnostic Algorithm and Causes

Increased red cell production: 
 • Increased Reticulocytosis/polychromasia 
 • Erythroid
Anemia #Algorithm #Differential ... #Causes #Workup ... #Hematology #Diagnosis ... GrepMed Recommended Text
SLICC SLE Diagnostic Criteria - Systemic Lupus Erythematosus
Clinical and Immunologic Criteria

CLINICAL CRITERIA
 - ACUTE CUTANEOUS LUPUS
ANA level above laboratory ... determined by Positive ... test for lupus ... Direct Coombs’ test ... #Diagnosis #Rheumatology