8 results
How to Evaluate an Abnormal APTT
Step 1: Is the PT or APTT Artifactually Prolonged?
Step 2: Is
APTT Step 1: Is ... the PT or APTT ... Prolonging the PT ... to identify the cause ... diagnosis #hematology #evaluation
Causes of Prolonged PT (INR), Prolonged PTT
 • Prolonged PT (INR), Prolonged PTT
 • Prolonged PT
PTT • Prolonged ... PT (INR), Normal ... PTT, Normal PT ... , Normal PT (INR ... #coagulation #disorders
Bleeding and Bruising - Disorders of Hemostasis - Differential Diagnosis Framework

== Quantitative or Qualitative defect in
PT/NORMAL PTT: ... PT/ABNORMAL PTT ... PT/NORMAL PTT: ... PT/ABNORMAL PTT ... discern these causes
Causes of Thrombocytopenia and Platelet Disorders - Differential Diagnosis and Workup
History:
 - Prior platelet count, family
and Platelet Disorders ... : INR/PT, aPTT(liver ... - Bone marrow evaluation ... primary hematologic disorder ... Thrombocytopenia #Platelet #Disorders
Disseminated Intravascular Coagulation (DIC) Overview

Increased Clotting and Consumption of Clotting Factors

Findings:
 • Bleeding
 • Recent history
• Prolonged PT ... /PTT • Low plasma ... Fibrinogen: ↓ • PT ... /INR: ↑ • PTT: ... INR < 2.3 - APTT
Hemophilia - Diagnosis and Management
Diagnosis:
 • Consistent bleeding history (unless screening for disease in family members
Diagnosis and Management ... established disease) • aPTT ... mixing study (aPTT ... mild cases) • ... PT/INR & von Willebrand
Ketosis Disorders
Ketone bodies are a normal metabolic energy source. Excessive unregulated production of ketones, often accompanied
Ketosis Disorders ... IVF or PO): The pt ... Glucosuria causes ... differential #diagnosis #management ... #endocrinology
TTP - Laboratory Evaluation for Thrombotic Thrombocytopenic Purpura

Activity of von Willebrand factor-cleaving protease activity - A
TTP - Laboratory Evaluation ... be performed PT ... , PTT, and fibrinogen ... levels - Usually normal ... decrease in most cases