117 results
Hemostasis Physiology

The blood's response to blood vessel injury can be viewed as four interrelated steps. 
Roman
factors. ... PF-3, platelet factor ... #Hemostasis #Pathophysiology ... #Coagulation #Cascade ... #Hematology
Summary of Coagulation Deficiencies
Inherited:
 • Hemophilia A - Deficiency of Factor VIII
 • Hemophilia B -
Summary of Coagulation ... Deficiency of Factor ... EricsMedicalLectures/ #Coagulation ... Summary #table #comparison ... #diagnosis #hematology
Coagulation Cascade Mnemonic - PITT vs PET
PITT (with an I) = Intrinsic = APTT
Coagulation Cascade ... Extrinsic=PT Factors ... Common Pathway: Factors ... @pinoygastro #Coagulation ... PET #diagnosis #hematology
Disseminated Intravascular Coagulation (DIC) Overview

Increased Clotting and Consumption of Clotting Factors

Findings:
 • Bleeding
 • Recent history
Consumption of Clotting Factors ... Reduced levels of factors ... protein C and S Pathophysiology ... organ damage Clinical ... treatment #management #hematology
Coagulation Cascade and Anticoagulant Sites of Action

- Amy Chung, MD, MSc https://twitter.com/AmyChung

#AntiCoagulation #Cascade #Anticoagulants #Medications #Pharmacology
Coagulation Cascade ... #Pharmacology #Pathophysiology ... Mechanisms #DOAC #Hematology
Causes of Bleeding / Bruising - Differential Diagnosis Algorithm
Thrombocytopenia - Quantitative Defect
 • Decreased Production
 •
• Vasculitis Coagulation ... Congenital • Factor ... Deficiency • Factor ... deficiencies Coagulation ... Algorithm #Causes #Hematology
ISTH Scoring System for Disseminated Intravascular Coagulation (DIC)
Platelet count:
 • Expected: Low (or normal)
 • Elevation
Intravascular Coagulation ... consumption of coagulation ... factors, Can be ... of thrombin and factor ... Scoring #diagnosis #hematology
Causes of Abnormal PT and/or aPTT
Prolonged Prothrombin Time (PT)
1. Acquired deficiency of FVII
Congenital intrinsic coagulation ... Decreased factor ... intravascular coagulation ... #differential #hematology ... #coagulation
Differential Diagnosis for a Prolonged PT and aPTT
If the PT and the aPTT are both prolonged,
could be multiple factors ... Decreased factor ... Factor consumption ... #differential #hematology ... #coagulation
Mixing Study
 • Clotting tests can be abnormal due to either a clotting factor deficiency, or
either a clotting factor ... inhibitor of normal factor ... Study #diagnosis #hematology ... #pathophysiology ... #hematology #laboratory