7 results
The coagulation cascade is shown, separated into different phases with their endogenous and pharmacological inhibitors shown.
The coagulation ... Thrombin, then primes ... and endothelial cells ... #Coagulation #Cascade ... #clot #PT #PTT
Causes of Abnormal PT and/or aPTT
Prolonged Prothrombin Time (PT)
1. Acquired deficiency of FVII
Congenital intrinsic coagulation ... drugs e.g. direct thrombin ... intravascular coagulation ... Causes #diagnosis #differential ... #hematology #coagulation
Disseminated Intravascular Coagulation (DIC) Overview

Increased Clotting and Consumption of Clotting Factors

Findings:
 • Bleeding
 • Recent history
Intravascular Coagulation ... • Prolonged PT ... • Increased thrombin ... Fibrinogen: ↓ • PT ... Schistocytes, helmet cells
Differential Diagnosis for a Prolonged PT and aPTT
If the PT and the aPTT are both prolonged,
Differential Diagnosis ... for a Prolonged PT ... drugs (e.g. direct thrombin ... Causes #diagnosis #differential ... #hematology #coagulation
Bleeding and Bruising - Disorders of Hemostasis - Differential Diagnosis Framework

== Quantitative or Qualitative defect in
of Hemostasis - Differential ... inhibitor of a coagulation ... intravascular coagulation ... warfarin, direct thrombin ... Bruising #Hemostasis #Differential
Bleeding manifestations 
Petechiae are small, flat, red, discrete areas of skin bleeding that are typically <2
are typical of coagulation ... in endothelial cells ... to be normal, PT ... Measurement of coagulation ... VWF:RCo/VWF:Ag (differentiate
Liver Chemistries - Interpretation of LFTs

R-value: Serum (ALT/ULN ALT) / (Alk phos/ULN ALP)
 • R >
• Albumin • Coagulation ... factors: PT/INR ... intestines, White blood cells ... chemistry #diagnosis #differential