42 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
Mixing Study
 • Clotting tests can be abnormal due to either a clotting factor deficiency, or
Study • Clotting tests ... • Clotting tests ... Mixing #Study #diagnosis ... #hematology #pathophysiology ... #hematology #laboratory
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
Bayesian combination of 4T score with Heparin PF4 antibody titer to obtain the post-test probability of
obtain the post-test ... PF4Antibody #Bayesian #Diagnosis ... #Hematology #HITT ... Thrombocytopenia #Laboratory
Abnormal Liver Function Tests - Differential Diagnosis Algorithm for Transaminitis
Hepatocellular Pattern (ALT or AST > ALP):
Liver Function Tests ... - Differential Diagnosis ... Wilsons, Pregnancy - AFLP ... Transaminitis #Algorithm #diagnosis ... #hepatology #LiverFunctionTests
Thrombocytopenia and Pregnancy - TTP/HUS, HELLP Syndrome and Acute Fatty Liver of Pregnancy (AFLP)
Three syndromes in
of Pregnancy (AFLP ... Elevated Liver tests ... TTPHUS #HELLP #AFLP ... #obstetrics #hematology ... #diagnosis #table
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
Prothrombin Time (PT) and Partial Thromboplastin Time (PTT)

Prothrombin Time (PT) - Often Elevated in:
 • Vitamin
• Underfilled test ... Thromboplastin #laboratory ... #hematology #diagnosis
Thrombocytopenia and Pregnancy
Three syndromes in the critically ill pregnant woman who presents with coagulation defects.
1) HELLP
Elevated Liver tests ... TTPHUS #HELLP #AFLP ... Obstetrics #OBGyn #Hematology ... #Diagnosis #Comparison
Liver Function Test (LFTs) Elevation
AST - Cardiac and skeletal muscle, kidney, brain
ALT - More specific for
Liver Function Test ... for the liver ALP ... Transaminase, ALP ... Transaminitis #diagnosis ... #hepatology