15 results
Causes of Abnormal PT and/or aPTT
Prolonged Prothrombin Time (PT)
1. Acquired deficiency of FVII
Causes of Abnormal ... Pre-analytical cause ... intravascular coagulation ... (DIC) c. ... #Prolonged #Causes
Disseminated Intravascular Coagulation (DIC) Overview

Increased Clotting and Consumption of Clotting Factors

Findings:
 • Bleeding
 • Recent history
(DIC) Overview ... • Prolonged PT/PTT ... Treat primary cause ... INR < 2.3 - APTT ... #diagnosis #causes
Differential Diagnosis for a Prolonged PT and aPTT
If the PT and the aPTT are both prolonged,
Prolonged PT and aPTT ... the PT and the aPTT ... Causes include : ... intravascularcoagulation (DIC ... differential #hematology #coagulation
Therefore, studies obtained at the initial presentation in the emergency department should evaluate for fibrinolysis with
thromboplastin time (PTT ... to evaluate for anemia ... decompensated DIC ... Diagnosis #Honc #DIC ... Intravascular #Coagulation
Visual Guide to AV Nodal Reentrant Tachycardia (AVNRT) - Pathophysiology
 - Dual AV nodal physiology is
Visual Guide to AV ... Nodal Reentrant ... Pathophysiology - Dual AV ... - In most case ... ECG usually shows
Diagnostic Framework for Hemolysis - Intravascular vs Extravascular Causes
Intravascular Hemolysis:
 • Mechanical Trauma (Microangiopathic hemolytic anemia):
Extravascular Causes ... Microangiopathic hemolytic anemia ... intravascular coagulation ... (DIC) - HELLP ... Extravascular #Causes
Peripheral blood findings in microangiopathic hemolytic anemia.  DIC is a clinical and laboratory diagnosis, not
microangiopathic hemolytic anemia ... DIC is a clinical ... Microangiopathic hemolytic anemia ... intravascular coagulation ... count, D-dimer, egg
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
vascular disorders, coagulation ... marrow disease - DIC ... - Hemolytic anemia ... Defects: • DIC ... Purpura Fulminans (DIC
Causes of Thrombocytopenia - Differential Diagnosis Algorithm
 
Decreased Megakaryopoiesis
 • Aplastic Anemia
 • Toxic Damage (e.g.
Causes of Thrombocytopenia ... Megakaryopoiesis • Aplastic Anemia ... Toxic Damage (e.g ... • TTP/HUS • DIC ... Diagnosis #Algorithm #Causes
Causes of Post-Partum Hemorrhage - Differential Diagnosis Algorithm
Blood Loss: >500mL post vaginal delivery OR >1000 mL
Causes of Post-Partum ... Uterine fatigue (e.g ... intravascular coagulation ... (DIC) • Anti-coagulation ... Diagnosis #Algorithm #Causes