7 results
How to Evaluate an Abnormal APTT
Step 1: Is the PT or APTT Artifactually Prolonged?
Step 2: Is
to Evaluate an Abnormal ... Step 1: Is the PT ... Patient Receiving Anticoagulants ... K Antagonists, Heparin ... , or Direct Thrombin
Bleeding and Bruising - Disorders of Hemostasis - Differential Diagnosis Framework

== Quantitative or Qualitative defect in
PT/ABNORMAL PTT ... inhibitor and lupus anticoagulant ... syndrome • Lupus anticoagulant ... deficiency • Anticoagulants ... deficiency • Anticoagulant
The coagulation cascade is shown, separated into different phases with their endogenous and pharmacological inhibitors shown.
at the site of injury ... Thrombin, then primes ... #clot #PT #PTT ... anticoagulation #anticoagulant ... Rivaroxaban #Edoxaban #heparin
Causes of Abnormal PT and/or aPTT
Prolonged Prothrombin Time (PT)
1. Acquired deficiency of FVII
Causes of Abnormal ... unfractionated heparin ... - Other anticoagulants ... drugs e.g. direct thrombin ... Jcortesizaguirr #Abnormal
Disseminated Intravascular Coagulation (DIC) Overview

Increased Clotting and Consumption of Clotting Factors

Findings:
 • Bleeding
 • Recent history
• Prolonged PT ... • Increased thrombin ... Fibrinogen: ↓ • PT ... Reduction of pro/anticoagulants ... 100mg/dL) - Heparin
Effect of Direct Oral Anticoagulants on Hemostatic Tests
Horizontal bars correspond to the approximate range of detectability
of Direct Oral Anticoagulants ... on Hemostatic Tests ... within and above typical ... assay; ECT = ecarin ... clotting time; TT = thrombin
Liver Chemistries - Interpretation of LFTs

R-value: Serum (ALT/ULN ALT) / (Alk phos/ULN ALP)
 • R >
AST/ALT > ALP: Typical ... - If both are normal ... Coagulation factors: PT ... replaced by non-hepatic ... Hemolysis #liver #chemistry