14 results
How to Evaluate an Abnormal APTT
Step 1: Is the PT or APTT Artifactually Prolonged?
Step 2: Is
to Evaluate an Abnormal ... the PT or APTT ... Heparin, or Direct Thrombin ... Prolonging the PT ... #diagnosis #hematology
Approach to Elevated aPTT / PT - Differential Diagnosis Algorithm

aPTT: Intrinsic / Final
PT: Extrinsic / Final

By
/ PT - Differential ... Diagnosis Algorithm ... aPTT: Intrinsic ... #PT #INR #Algorithm ... #differential #diagnosis
Algorithm for Investigation of Abnormal Coagulation Tests
- Prolonged PT
- Prolonged aPTT and Prolonged PT
- Prolonged aPTT

Dr.
Algorithm for Investigation ... of Abnormal Coagulation ... Tests - Prolonged PT ... and Prolonged PT ... #Hematology #Diagnosis
Causes of Prolonged PT (INR), Prolonged PTT
 • Prolonged PT (INR), Prolonged PTT
 • Prolonged PT
(INR), Normal PTT ... , Normal PT (INR ... , Normal PT (INR ... #Differential #Diagnosis ... #Algorithm #Causes
This 24M presented with acute onset CP/SOB, hypoxia, HR 150s. What's the diagnosis? Treatment options? Hint:
What's the diagnosis ... Thrombus in transit ... Pt had extensive ... 3 d later with normal ... Echocardiogram #A4C
Causes of Abnormal PT and/or aPTT
Prolonged Prothrombin Time (PT)
1. Acquired deficiency of FVII
PT and/or aPTT ... Congenital intrinsic ... drugs e.g. direct thrombin ... #PT #aPTT #Prolonged ... #Causes #diagnosis
Differential Diagnosis for a Prolonged PT and aPTT
If the PT and the aPTT are both prolonged,
PT and the aPTT ... affected in the intrinsic ... drugs (e.g. direct thrombin ... amyloidosis #Abnormal ... #PT #aPTT #Prolonged
Cool echo - RV strain, McConnell sign, and CLOT IN TRANSIT!! BP is normal and pt
BP is normal and ... pt not in distress ... Echocardiogram #A4C ... Pulmonary #Embolism #Thrombus ... #Clots #InTransit
Approach to Thrombotic Microangiopathy (TMA) - Differential Diagnosis and Management Algorithm

Suspected TMA: Unexplained thrombocytopenia + MAHA
- Differential Diagnosis ... and Management Algorithm ... /aPTT MAHA likely ... hemosiderin • PT ... /aPTT normal
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 ... warfarin, direct thrombin