10 results
Algorithm for Investigation of Abnormal Coagulation Tests
- Prolonged PT
- Prolonged aPTT and Prolonged PT
- Prolonged aPTT

Dr.
Algorithm for Investigation ... - Prolonged aPTT ... - Prolonged aPTT ... Coagulation #Abnormal #APTT ... #Laboratory #Hematology
Prothrombin Time (PT) and Partial Thromboplastin Time (PTT)

Prothrombin Time (PT) - Often Elevated in:
 • Vitamin
Thromboplastin Time (PTT ... inhibitor • Liver disease ... #PTT #Prothrombin ... Thromboplastin #laboratory ... #hematology #diagnosis
Von Willebrand Disease - Most common inherited bleeding disorder 
Clinical 
 • Easy bruising 
 •
Von Willebrand Disease ... GI. uterine) Laboratory ... INR • Normal aPTT ... VonWillebrand #Disease ... #Diagnosis #Hematology
Approach to Thrombotic Microangiopathy (TMA) - Differential Diagnosis and Management Algorithm

Suspected TMA: Unexplained thrombocytopenia + MAHA
Diagnosis and Management ... Algorithm Suspected ... /aPTT MAHA likely ... /aPTT normal • ... #Algorithm #hematology
Disseminated Intravascular Coagulation (DIC) Overview

Increased Clotting and Consumption of Clotting Factors

Findings:
 • Bleeding
 • Recent history
/PTT • Low plasma ... /INR: ↑ • PTT: ... • Severe Liver Disease ... INR < 2.3 - APTT ... #hematology
Hemophilia - Diagnosis and Management
Diagnosis:
 • Consistent bleeding history (unless screening for disease in family members
Diagnosis and Management ... screening for disease ... ) • aPTT is prolonged ... mixing study (aPTT ... #treatment #hematology
Macrophage Activation Syndrome (MAS)
Classified among the secondary or acquired forms of haemophagocytic lymphohistiocytosis (sHLH)

What?
A subset of
highly inflammatory disease ... Hypofibrinogenemia • ↑ PT ... ↑ PTT • ↑ Fibrin ... Syndrome #Diagnosis #Management ... #Hematology #Rheumatology
TTP - Laboratory Evaluation for Thrombotic Thrombocytopenic Purpura

Activity of von Willebrand factor-cleaving protease activity - A
TTP - Laboratory ... hallmark for the disease ... be performed PT ... , PTT, and fibrinogen ... Diagnosis #Workup #Hematology
IgG4-Related Disease
Clinical history:  Man, 60 years, multiorgan involvement, unique or multiple inflammatory pseudotumor
4 phenotypes:
 •
IgG4-Related Disease ... concentration PET-CT ... relapse No specific laboratory ... #diagnosis #management ... workup #treatment #rheumatology
Drug Induced Lupus vs SLE
Drug Induced Lupus (DIL):
 • Epidemiology: -10% of all lupus cases, drug-dependent,
calcium-b) • Laboratory ... anti-MPO - Seen with PTU ... Evolution: Chronic disease ... comparison #table #rheumatology ... #diagnosis #management