32 results
Causes of Prolonged PT (INR), Prolonged PTT
 • Prolonged PT (INR), Prolonged PTT
 • Prolonged PT
• Prolonged PT ... • Prolonged PT ... , Normal PT (INR ... #Diagnosis #Algorithm ... #Causes #Hematology
Coagulation Cascade Mnemonic - PITT vs PET
PITT (with an I) = Intrinsic = APTT
vs PET PITT (with ... 9, 10, 11, 12 PET ... E)= Extrinsic=PT ... #PET #diagnosis ... #hematology
Algorithm for Investigation of Abnormal Coagulation Tests
- Prolonged PT
- Prolonged aPTT and Prolonged PT
- Prolonged aPTT

Dr.
Algorithm for Investigation ... Tests - Prolonged PT ... and Prolonged PT ... #Laboratory #Hematology ... #Diagnosis #Workup
Prothrombin Time (PT) and Partial Thromboplastin Time (PTT)

Prothrombin Time (PT) - Often Elevated in:
 • Vitamin
Prothrombin Time (PT ... Prothrombin Time (PT ... thematttsai #PT ... #PTT #Prothrombin ... Thromboplastin #laboratory #hematology
Approach to Elevated aPTT / PT - Differential Diagnosis Algorithm

aPTT: Intrinsic / Final
PT: Extrinsic / Final

By
/ PT - Differential ... Diagnosis Algorithm ... / Final PT: Extrinsic ... #PT #INR #Algorithm ... #Hematology #differential
How to Evaluate an Abnormal APTT
Step 1: Is the PT or APTT Artifactually Prolonged?
Step 2: Is
Step 1: Is the PT ... Prolonging the PT ... #prolonged #diagnosis ... #hematology #evaluation ... mixing #studies #PTT
Pancytopenia - Differential Diagnosis Algorithm
 • 12-13 g/dL,
 • ANC < 1800/uL,
 • platelet < 150,000/uL

Initial
Algorithm • 12 ... /uL Initial Workup ... iron studies, PT ... #Algorithm #hematology ... #workup
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: ... treatment #management #hematology
Approach to Thrombotic Microangiopathy (TMA) - Differential Diagnosis and Management Algorithm

Suspected TMA: Unexplained thrombocytopenia + MAHA
- Differential Diagnosis ... and Management Algorithm ... antiglobulin test, PT ... hemosiderin • PT ... #hematology
Causes of Thrombocytopenia and Platelet Disorders - Differential Diagnosis and Workup
History:
 - Prior platelet count, family
and Workup History ... for decreased PLT ... for decreased PLT ... selected cases: INR/PT ... #hematology