12 results
Causes of Prolonged PT (INR), Prolonged PTT
 • Prolonged PT (INR), Prolonged PTT
 • Prolonged PT
Causes of Prolonged PT ... • Prolonged PT ... #INR #Differential ... Algorithm #Causes #Hematology ... #coagulation #disorders
Disseminated Intravascular Coagulation (DIC) Overview

Increased Clotting and Consumption of Clotting Factors

Findings:
 • Bleeding
 • Recent history
history of trauma, sepsis ... • Prolonged PT ... Fibrinogen: ↓ • PT ... INR < 2.3 - APTT ... treatment #management #hematology
ISTH Scoring System for Disseminated Intravascular Coagulation (DIC)
Platelet count:
 • Expected: Low (or normal)
 • Elevation
(DIC) Platelet ... platelet aggregation PT ... , aPTT: • Expected ... using INR use PT ... Scoring #diagnosis #hematology
Causes of Abnormal PT and/or aPTT
Prolonged Prothrombin Time (PT)
1. Acquired deficiency of FVII
Congenital intrinsic coagulation ... intravascular coagulation ... (DIC) c. ... Causes #diagnosis #differential ... #hematology #coagulation
Differential Diagnosis for a Prolonged PT and aPTT
If the PT and the aPTT are both prolonged,
Differential Diagnosis ... PT and the aPTT ... intravascularcoagulation (DIC ... Causes #diagnosis #differential ... #hematology #coagulation
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
Purpura - Differential ... - Hemolytic anemia ... #Diagnosis #hematology ... #rheumatology # ... #nonpalpable #dermatology
Bleeding and Bruising - Disorders of Hemostasis - Differential Diagnosis Framework

== Quantitative or Qualitative defect in
of Hemostasis - Differential ... inhibitor of a coagulation ... Warfarin • Acute DIC ... disease • Acute DIC ... #Diagnosis #Hematology
Diagnostic Framework for Hemolysis - Intravascular vs Extravascular Causes
Intravascular Hemolysis:
 • Mechanical Trauma (Microangiopathic hemolytic anemia):
intravascular coagulation ... (DIC) - HELLP ... Extravascular #Causes #differential ... #diagnosis #hematology ... #anemia
Causes of Thrombocytopenia and Platelet Disorders - Differential Diagnosis and Workup
History:
 - Prior platelet count, family
Platelet Disorders - Differential ... selected cases: INR/PT ... , aPTT(liver disease ... changes), high MCV anemia ... Causes #Workup #hematology
PLATELETS Mnemonic for Causes of Thrombocytopenia

P - Platelet Disorders (DIC, ITP, TTP)
L - Leukemia, Lymphoma
A -
Platelet Disorders (DIC ... A - Aplastic Anemia ... Heparin-induced) S - Sepsis ... Thrombocytopenia #Differential ... #Diagnosis #Hematology