9 results
Disseminated Intravascular Coagulation (DIC) Overview

Increased Clotting and Consumption of Clotting Factors

Findings:
 • Bleeding
 • Recent history
protein C and S Pathophysiology ... Treat primary cause ... INR < 2.3 - APTT ... Coagulation #diagnosis #causes ... treatment #management #hematology
Differential Diagnosis for a Prolonged PT and aPTT
If the PT and the aPTT are both prolonged,
the PT and the aPTT ... (e.g. heparin contamination ... thrombin inhibitors, heparin ... intravascularcoagulation (DIC ... #differential #hematology
Causes of Abnormal PT and/or aPTT
Prolonged Prothrombin Time (PT)
1. Acquired deficiency of FVII
Causes of Abnormal ... unfractionated heparin ... e.g. heparin ... intravascular coagulation (DIC ... #differential #hematology
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
marrow disease - DIC ... deficiencies - PNH ... Purpura Fulminans (DIC ... Cholesterol emboli • Septic ... Differential #Diagnosis #hematology
The coagulation cascade is shown, separated into different phases with their endogenous and pharmacological inhibitors shown.
thrombin #clot #PT #PTT ... diagnosis #models #hematology ... #pathophysiology ... #anticoagulation ... Rivaroxaban #Edoxaban #heparin
Venous Thrombosis vs Arterial Thrombosis - Differential Diagnosis Framework

VENOUS THROMBOSIS

 • Acquired Risk Factors:
	- >48 hours
Hyperhomocysteinemia - Heparin-induced ... coagulation and other causes ... - COVID-19 - PNH ... Venous #Arterial #pathophysiology ... #hematology #differential
Bleeding and Bruising - Disorders of Hemostasis - Differential Diagnosis Framework

== Quantitative or Qualitative defect in
Acquired: • Heparin ... Warfarin • Acute DIC ... discern these causes ... disease • Acute DIC ... Differential #Diagnosis #Hematology
Leukemias Overview: ALL, CML, AML, APML, CLL

Acute leukemias > 20% blasts in the peripheral blood smear
-> AML: Blast crises ... count ↑ PLT • ↑ PBS ... Fibrinolysis & DIC ... #Leukemia #Hematology ... #Oncology #Diagnosis
Summary of Oncologic Emergencies

Neutropenic fever:
- Fever + ANC < 500 → start cefepime ± vancomycin (if
Summary of Oncologic ... syndrome): - Hematologic ... G6PD first) DIC ... Treat underlying cause ... stenting - Consider anticoagulation