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

Dr.
Investigation of Abnormal ... Coagulation Tests ... #Abnormal #APTT ... #Laboratory #Hematology ... #Diagnosis #Workup
Summary of Coagulation Deficiencies
Inherited:
 • Hemophilia A - Deficiency of Factor VIII
 • Hemophilia B -
Summary of Coagulation ... Medications - Heparin ... EricsMedicalLectures/ #Coagulation ... Deficiencies #Summary #table ... comparison #diagnosis #hematology
Causes of Bleeding / Bruising - Differential Diagnosis Algorithm
Thrombocytopenia - Quantitative Defect
 • Decreased Production
 •
Bleeding / Bruising - Differential ... Destruction • Abnormal ... • Vasculitis Coagulation ... Bleeding #Bruising #Differential ... Algorithm #Causes #Hematology
Thrombotic Microangiopathies - Primary Thrombotic Microangiopathy (TMA) - Differential Diagnosis Table

 • Thrombotic Thrombocytopenic Purpura (TTP)
Microangiopathy (TMA) - Differential ... Diagnosis Table ... Metabolism-mediated TMA - Coagulation-mediated ... Microangiopathy #TMA #hematology ... #differential #
Causes of Prolonged PT (INR), Prolonged PTT
 • Prolonged PT (INR), Prolonged PTT
 • Prolonged PT
Prolonged PTT, Normal ... Prolonged PTT, Normal ... #PPT #PT #INR #Differential ... Algorithm #Causes #Hematology ... #coagulation #disorders
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
Purpura - Differential ... Cholesterol emboli • Septic ... Vasculopathy #Purpura #Differential ... #Diagnosis #hematology ... #nonpalpable #dermatology
Disseminated Intravascular Coagulation (DIC) Overview

Increased Clotting and Consumption of Clotting Factors

Findings:
 • Bleeding
 • Recent history
dysfunction (25%) • Hepatic ... deficiency) • HIT: Heparin-PF4 ... 100mg/dL) - Heparin ... - APTT < 1.5 x normal ... treatment #management #hematology
Causes of Abnormal PT and/or aPTT
Prolonged Prothrombin Time (PT)
1. Acquired deficiency of FVII
Causes of Abnormal ... unfractionated heparin ... Jcortesizaguirr #Abnormal ... Causes #diagnosis #differential ... #hematology #coagulation
Approach to Thrombotic Microangiopathy (TMA) - Differential Diagnosis and Management Algorithm

Suspected TMA: Unexplained thrombocytopenia + MAHA
Microangiopathy (TMA) - Differential ... hemoglobin/hemosiderin, Hepatic ... hemosiderin • PT/aPTT normal ... Microangiopathy #TMA #Differential ... Management #Algorithm #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. heparin ... thrombin inhibitors, heparin ... amyloidosis #Abnormal ... #hematology #coagulation