11 results
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
vascular disorders, coagulation ... inflammation • Thrombocytopenia ... Platelet defects • Coagulation ... : - Thrombocytopenia ... palpable #nonpalpable
Causes of Purpura - Differential Diagnosis
Non-PalpabIe → Palpable
 • Thrombocytopenia (HIT, ITP/HUS), Coagulation defects (DIC, warfarin
Causes of Purpura ... → Palpable • Thrombocytopenia ... HIT, ITP/HUS), Coagulation ... BrighamChiefs #Purpura #nonpalpable ... #palpable #Causes
Thrombocytopenia and Pregnancy
Three syndromes in the critically ill pregnant woman who presents with coagulation defects.
1) HELLP
Thrombocytopenia ... presents with coagulation ... child * Severe cases ... #Pregnancy #TTPHUS ... Obstetrics #OBGyn #Hematology
Thrombocytopenia and Pregnancy - TTP/HUS, HELLP Syndrome and Acute Fatty Liver of Pregnancy (AFLP)
Three syndromes in
Thrombocytopenia ... presents with coagulation ... child * Severe cases ... #TTPHUS #HELLP ... AFLP #obstetrics #hematology
Causes of Bleeding / Bruising - Differential Diagnosis Algorithm
Thrombocytopenia - Quantitative Defect
 • Decreased Production
 •
Causes of Bleeding ... Diagnosis Algorithm Thrombocytopenia ... • Vasculitis Coagulation ... Diagnosis #Algorithm #Causes ... #Hematology
Disseminated Intravascular Coagulation (DIC) Overview

Increased Clotting and Consumption of Clotting Factors

Findings:
 • Bleeding
 • Recent history
transfusion • Thrombocytopenia ... coagulopathy - Thrombocytopenia ... Treat primary cause ... #diagnosis #causes ... treatment #management #hematology
Diagnostic Framework for Hemolysis - Intravascular vs Extravascular Causes
Intravascular Hemolysis:
 • Mechanical Trauma (Microangiopathic hemolytic anemia):
Extravascular Causes ... intravascular coagulation ... microangiopathy: Thrombotic thrombocytopenic ... Extravascular #Causes ... differential #diagnosis #hematology
Bleeding manifestations 
Petechiae are small, flat, red, discrete areas of skin bleeding that are typically <2
non-blanching, nonpalpable ... individuals with thrombocytopenia ... ecchymosis) is caused ... are typical of coagulation ... Measurement of coagulation
Thrombotic Microangiopathy - TMAs
1. Not all MAHAs are due to TMAs but (almost) all TMAs cause
almost) all TMAs cause ... triad of MAHA + thrombocytopenia ... metabolism and coagulation-mediated ... Microangiopathy #TMAs #hematology
Venous Thrombosis vs Arterial Thrombosis - Differential Diagnosis Framework

VENOUS THROMBOSIS

 • Acquired Risk Factors:
	- >48 hours
considered in all cases ... Heparin-induced thrombocytopenia ... intravascular coagulation ... and other causes ... pathophysiology #hematology