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

Increased Clotting and Consumption of Clotting Factors

Findings:
 • Bleeding
 • Recent history
(DIC) Overview ... Acral cyanosis • Hemorrhagic ... 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 ... • Massive hemorrhage ... intravascularcoagulation (DIC ... differential #hematology #coagulation
Causes of Post-Partum Hemorrhage - Differential Diagnosis Algorithm
Blood Loss: >500mL post vaginal delivery OR >1000 mL
Causes of Post-Partum ... Hemorrhage - Differential ... intravascular coagulation ... (DIC) • Anti-coagulation ... #PostPartum #Hemorrhage
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
Chronic Hypertensive Retinopathy: Pathogenesis and clinical findings

Ophthalmic Artery Hypertension
Stage 1: Mild/vasoconstrictive
 • Acute and chronic vasospasm
underlying venule -> AV ... dot/blot hemorrhages ... retina and flame hemorrhages ... layer -> Retinal Hemorrhages ... hemorrhage and
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
red to purple, hemorrhagic ... vascular disorders, coagulation ... marrow disease - DIC ... Defects: • DIC ... Purpura Fulminans (DIC
Diagnostic Framework for Hemolysis - Intravascular vs Extravascular Causes
Intravascular Hemolysis:
 • Mechanical Trauma (Microangiopathic hemolytic anemia):
Extravascular Causes ... intravascular coagulation ... (DIC) - HELLP ... (usually IgG) (e.g ... Extravascular #Causes
Bleeding and Bruising - Disorders of Hemostasis - Differential Diagnosis Framework

== Quantitative or Qualitative defect in
inhibitor of a coagulation ... Warfarin • Acute DIC ... intravascular coagulation ... discern these causes ... disease • Acute DIC
Causes of Petechial Rash - Differential Diagnosis Algorithm

Pinpoint areas (less than 2 mm) of hemorrhage, which
Causes of Petechial ... than 2 mm) of hemorrhage ... fulminans - DIC ... Complete blood count coagulation ... Diagnosis #Algorithm #Causes