12 results
Coagulation Cascade Mnemonic - PITT vs PET
PITT (with an I) = Intrinsic = APTT
(with an I) = Intrinsic ... = APTT Factors ... E)= Extrinsic=PT ... Mnemonic #PITT #PET #diagnosis ... #hematology
Approach to Elevated aPTT / PT - Differential Diagnosis Algorithm

aPTT: Intrinsic / Final
PT: Extrinsic / Final

By
/ PT - Differential ... Diagnosis Algorithm ... aPTT: Intrinsic ... #Hematology #differential ... #diagnosis
How to Evaluate an Abnormal APTT
Step 1: Is the PT or APTT Artifactually Prolonged?
Step 2: Is
Step 1: Is the PT ... Heparin, or Direct Thrombin ... Prolonging the PT ... #prolonged #diagnosis ... #hematology #evaluation
The coagulation cascade is shown, separated into different phases with their endogenous and pharmacological inhibitors shown.
The coagulation cascade ... along with FXIIa (intrinsic ... #clot #PT #PTT ... #diagnosis #models ... #hematology #pathophysiology
Differential Diagnosis for a Prolonged PT and aPTT
If the PT and the aPTT are both prolonged,
Differential Diagnosis ... PT and the aPTT ... affected in the intrinsic ... drugs (e.g. direct thrombin ... #differential #hematology
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 ... Echocardiogram #A4C ... #Clots #InTransit
Causes of Abnormal PT and/or aPTT
Prolonged Prothrombin Time (PT)
1. Acquired deficiency of FVII
Causes of Abnormal PT ... Congenital intrinsic ... drugs e.g. direct thrombin ... #Causes #diagnosis ... #differential #hematology
Pancytopenia - Differential Diagnosis Algorithm
 • 12-13 g/dL,
 • ANC < 1800/uL,
 • platelet < 150,000/uL

Initial
- Differential Diagnosis ... 12-13 g/dL, • ANC ... iron studies, PT ... /aPTT Differential ... #Algorithm #hematology
ISTH Scoring System for Disseminated Intravascular Coagulation (DIC)
Platelet count:
 • Expected: Low (or normal)
 • Elevation
platelet aggregation PT ... , aPTT: • Expected ... using INR use PT ... ISTH #Scoring #diagnosis ... #hematology #laboratory
Bleeding and Bruising - Disorders of Hemostasis - Differential Diagnosis Framework

== Quantitative or Qualitative defect in
- Differential Diagnosis ... integrity Clotting cascade ... pathway to the intrinsic ... warfarin, direct thrombin ... #Hematology