18 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
Commonly Used Diagnostic Tests for Celiac Disease

Tissue transglutaminase (tTG) IgA antibodies
 - Most reliable noninvasive test
Tests for Celiac ... reliable noninvasive test ... #Testing #Laboratory ... #Tests #Diagnosis ... #Workup #Table
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 ... disease with serology
Hyperthyroidism (low TSH, High T4/T3) - Diagnostic Algorithm

Radioactive iodine scan – get if concern for nodular
Graves disease – ... Check pregnancy test ... workup choices ... #Algorithm #Workup ... #Endocrinology
Rheumatology Workup - Laboratories Studies in Rheumatic Diseases

• Septic arthritis - Gram stain and culture of
Rheumatology Workup ... antibody (ANA) test ... ; if positive, test ... Screening Tests ... #workup #diagnosis
Primary Adrenal Insufficiency:
 • ACTH stimulation test - Synthetic ACTH does not stimulate cortisol secretion because
ACTH stimulation test ... Insufficiency #Evaluation #laboratory ... #diagnosis #testing ... #endocrinology ... #workup
Prothrombin Time (PT) and Partial Thromboplastin Time (PTT)

Prothrombin Time (PT) - Often Elevated in:
 • Vitamin
inhibitor • Liver disease ... • Underfilled test ... Thromboplastin #laboratory ... #hematology #diagnosis
Hemolysis - Differential Diagnosis Framework

1) Environment
  - Fragmentation
  - MAHA: TTP, HUS, DIC, HELLP
- Differential Diagnosis ... , Drugs, Liver Disease ... Hypophostphatemia Laboratory ... Tests: - Haptoglobin ... #hematology
Causes of Thrombocytopenia and Platelet Disorders - Differential Diagnosis and Workup
History:
 - Prior platelet count, family
- Differential Diagnosis ... and Workup History ... K), H. pylori test ... thyroid function test ... #hematology
Irritable Bowel Syndrome (IBS) - Diagnosis and Workup Summary
Use a positive diagnostic strategy with minimal testing.
and Workup Summary ... cultures, but test ... Rule out celiac disease ... inflammatory bowel disease ... Balloon Expulsion Test