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

Dr.
Investigation of Abnormal Coagulation ... PT - Prolonged aPTT ... #Algorithm #Coagulation ... #Laboratory #Hematology ... #Diagnosis #Workup
Causes of Prolonged PT (INR), Prolonged PTT
 • Prolonged PT (INR), Prolonged PTT
 • Prolonged PT
INR), Prolonged PTT ... (INR), Normal PTT ... #PPT #PT #INR #Differential ... Algorithm #Causes #Hematology ... #coagulation #disorders
Pancytopenia - Differential Diagnosis Algorithm
 • 12-13 g/dL,
 • ANC < 1800/uL,
 • platelet < 150,000/uL

Initial
/uL Initial Workup ... iron studies, PT/aPTT ... Differential ... Diagnosis #Algorithm #hematology ... #workup
Causes of Abnormal PT and/or aPTT
Prolonged Prothrombin Time (PT)
1. Acquired deficiency of FVII
Abnormal PT and/or aPTT ... Congenital intrinsic coagulation ... intravascular coagulation ... Causes #diagnosis #differential ... #hematology #coagulation
Eosinophil Disorders Testing Algorithm
INDICATIONS FOR TESTING:
 • Peripheral blood eosinophilia/hypereosinophilia uncovered incidentally during medical evaluation or
evaluation or workup ... /µL Workup • Screen ... symptoms (eg, skin ... Disorders #Algorithm #Differential ... #diagnosis #hematology
Differential Diagnosis for a Prolonged PT and aPTT
If the PT and the aPTT are both prolonged,
Differential Diagnosis ... Prolonged PT and aPTT ... the PT and the aPTT ... Causes #diagnosis #differential ... #hematology #coagulation
Disseminated Intravascular Coagulation (DIC) Overview

Increased Clotting and Consumption of Clotting Factors

Findings:
 • Bleeding
 • Recent history
• Prolonged PT/PTT ... PT/INR: ↑ • PTT ... Schistocytes, helmet cells ... INR < 2.3 - APTT ... treatment #management #hematology
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
Purpura - Differential ... purple, hemorrhagic skin ... Vasculopathy #Purpura #Differential ... #Diagnosis #hematology ... #rheumatology #
The coagulation cascade is shown, separated into different phases with their endogenous and pharmacological inhibitors shown.
The coagulation ... and endothelial cells ... #Coagulation #Cascade ... thrombin #clot #PT #PTT ... diagnosis #models #hematology
Causes of Thrombocytopenia and Platelet Disorders - Differential Diagnosis and Workup
History:
 - Prior platelet count, family
Platelet Disorders - Differential ... Diagnosis and Workup ... cases: INR/PT, aPTT ... Diagnosis #Causes #Workup ... #hematology