16 results
Causes of Abnormal PT and/or aPTT
Prolonged Prothrombin Time (PT)
1. Acquired deficiency of FVII
Causes of Abnormal ... PT and/or aPTT ... Pre-analytical cause ... (DIC) c. ... #Causes #diagnosis
Differential Diagnosis for a Prolonged PT and aPTT
If the PT and the aPTT are both prolonged,
for a Prolonged PT ... and aPTT If the ... PT and the aPTT ... intravascularcoagulation (DIC ... differential #hematology #coagulation
Causes of Prolonged PT (INR), Prolonged PTT
 • Prolonged PT (INR), Prolonged PTT
 • Prolonged PT
Causes of Prolonged ... PT (INR), Prolonged ... PTT, Normal PT ... Diagnosis #Algorithm #Causes ... #Hematology #coagulation
Disseminated Intravascular Coagulation (DIC) Overview

Increased Clotting and Consumption of Clotting Factors

Findings:
 • Bleeding
 • Recent history
• Prolonged PT ... Fibrinogen: ↓ • PT ... Treat primary cause ... INR < 2.3 - APTT ... #diagnosis #causes
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 ... small vessels #DIC
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
Therefore, studies obtained at the initial presentation in the emergency department should evaluate for fibrinolysis with
prothrombin time (PT ... thromboplastin time (PTT ... decompensated DIC ... Diagnosis #Honc #DIC ... Intravascular #Coagulation
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 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
Chest Pain - Diagnosis and Workup Algorithm

History and Exam
Acute life-threatening causes:
 • Acute myocardial infarction
 •
life-threatening causes ... Initial workup: • EKG ... , LET, lipase, PT ... . aPTT • Serial