9 results
Approach to Thrombotic Microangiopathy (TMA) - Differential Diagnosis and Management Algorithm

Suspected TMA: Unexplained thrombocytopenia + MAHA
Diagnosis and Management ... hemoglobin/hemosiderin, Hepatic ... antiglobulin test, PT/aPTT ... hemosiderin • PT/aPTT ... #Algorithm #hematology
Differential Diagnosis for a Prolonged PT and aPTT
If the PT and the aPTT are both prolonged,
Differential Diagnosis ... Pre-analytical cause (e.g. heparin ... thrombin inhibitors, heparin ... Causes #diagnosis #differential ... #hematology #coagulation
Causes of Abnormal PT and/or aPTT
Prolonged Prothrombin Time (PT)
1. Acquired deficiency of FVII
unfractionated heparin ... cause e.g. heparin ... thrombin inhibitors, heparin ... Causes #diagnosis #differential ... #hematology #coagulation
Disseminated Intravascular Coagulation (DIC) Overview

Increased Clotting and Consumption of Clotting Factors

Findings:
 • Bleeding
 • Recent history
dysfunction (25%) • Hepatic ... 100mg/dL) - Heparin ... INR < 2.3 - APTT ... causes #treatment #management ... #hematology
Adult-Onset Still's Disease
Clinical triad: Fever, Arthralgia/arthritis, Skin rash ± odynophagia
+ Biological inflammation: Increased neutrophils, Hyperferritinemia, decreased
arthritis, Skin rash ... fraction < 20% Differential ... splenomegaly • Hepatic ... Disease #diagnosis #management ... #treatment #rheumatology
Causes of Thrombocytopenia and Platelet Disorders - Differential Diagnosis and Workup
History:
 - Prior platelet count, family
Platelet Disorders - Differential ... cases: INR/PT, aPTT ... (CVID, WAS), (neurologic ... or if a primary hematologic ... Causes #Workup #hematology
Macrophage Activation Syndrome (MAS)
Classified among the secondary or acquired forms of haemophagocytic lymphohistiocytosis (sHLH)

What?
A subset of
Petechial or purpuric rash ... Hypofibrinogenemia • ↑ PT ↑ PTT ... Syndrome #Diagnosis #Management ... #Hematology #Rheumatology
Bleeding and Bruising - Disorders of Hemostasis - Differential Diagnosis Framework

== Quantitative or Qualitative defect in
of Hemostasis - Differential ... NORMAL PT/NORMAL PTT ... Acquired: • Heparin ... Bruising #Hemostasis #Differential ... #Diagnosis #Hematology
Paraproteinemias

Entities That Can Feature A Monoclonal Protein/M Component:
• MM
• WM
• MGUS
• MGCS
• MGRS
• Splenic Marginal Zone
Entities That Can Feature ... et diutinum Neurologic ... Paraproteinemias #Hematology ... #Monoclonal #Differential