51 results
Approach to Elevated aPTT / PT - Differential Diagnosis Algorithm

aPTT: Intrinsic / Final
PT: Extrinsic / Final

By
/ PT - Differential ... Diagnosis Algorithm ... INR #Algorithm #Hematology ... #differential # ... diagnosis
Causes of Splenomegaly - Differential Diagnosis Algorithm
Infectious
 • Bacterial
 • Viral (EBV)
 • Parasitic
 • Fungal
Congestive
Diagnosis Algorithm ... Parasitic • Fungal ... • Thrombus (e.g ... Myeloproliferative disorders (eg ... #Causes #Hematology
Differential Diagnosis for a Prolonged PT and aPTT
If the PT and the aPTT are both prolonged,
Differential Diagnosis ... Pre-analytical cause (e.g ... inhibitory drugs (e.g ... specific inhibitor (e.g ... hematology #coagulation
Red Blood Cell (RBC) Morphology Atlas
 • Microcytic - Iron-deficiency anemia, Thalassemia, Sideroblastic anemia, Lead poisoning
Blood Cell (RBC) Morphology ... Atlas • Microcytic ... #Atlas #key #diagnosis ... #differential # ... hematology
Causes of Abnormal PT and/or aPTT
Prolonged Prothrombin Time (PT)
1. Acquired deficiency of FVII
to one factor e.g ... inhibitory drugs e.g ... Prolonged #Causes #diagnosis ... #differential # ... hematology #coagulation
Mixing Study
 • Clotting tests can be abnormal due to either a clotting factor deficiency, or
factor activity (e.g ... clotting test (e.g ... PT and/or aPTT) ... #hematology #pathophysiology ... #hematology #laboratory
Causes of Thrombocytopenia - Differential Diagnosis Algorithm
 
Decreased Megakaryopoiesis
 • Aplastic Anemia
 • Toxic Damage (e.g.
Diagnosis Algorithm ... Toxic Damage (e.g ... Displacement (e.g ... Foreign Surface (e.g ... #Causes #Hematology
Red Blood Cell (RBC) Morphology
Microcytic RBC: Pyridoxine deficiency, Thalassemia, Iron deficiency anemia, Chronic disease anemia (sometimes),
Blood Cell (RBC) Morphology ... Chemotherapy (e.g ... #differential # ... diagnosis #hematology ... #microscopy #atlas
Approach to the Hypercoagulable State
Arterial thromboembolism
→ Cardiac rhythm monitoring, Echocardiogram, Vascular imaging
→ Test for APS, particularly
• Provoked (e.g ... screening, CBC, aPTT ... Hypercoagulable #Workup #hematology ... #diagnosis #algorithm ... #hematology #VTE
Morphology and Descriptions of Endemic Fungal Infections with Yeasts in Tissues
Broad-based budding yeasts:
 • Description: Broad-based
Morphology and Descriptions ... yeasts #pathology #clinical ... #atlas #fungi # ... microbiology #differential ... #diagnosis