51 results
How to Evaluate an Abnormal APTT
Step 1: Is the PT or APTT Artifactually Prolonged?
Step 2: Is
to Evaluate an Abnormal ... K Antagonists, Heparin ... to identify the cause ... ISNeducation #Abnormal ... #diagnosis #hematology
Causes of Prolonged PT (INR), Prolonged PTT
 • Prolonged PT (INR), Prolonged PTT
 • Prolonged PT
Causes of Prolonged ... PTT, Normal PT ... , Normal PT (INR ... Diagnosis #Algorithm #Causes ... #Hematology #coagulation
Approach to Thrombotic Microangiopathy (TMA) - Differential Diagnosis and Management Algorithm

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

NO cause found in 60% of cases
Drugs (antibiotics e.g., sulfonamides, amoxicillin)
Oral
Causes of Erythema ... amoxicillin) Oral ... Nodosum #Mnemonic #Causes ... Differential #Diagnosis #Dermatology ... #SkinRash
Disseminated Intravascular Coagulation (DIC) Overview

Increased Clotting and Consumption of Clotting Factors

Findings:
 • Bleeding
 • Recent history
Thrombocytopenia - Normal ... Treat primary cause ... < 1.5 x normal ... Coagulation #diagnosis #causes ... treatment #management #hematology
Hepatic Masses on MRI - Differential Diagnosis by MRI Findings

Masses: Hemangioma, Adenoma, FNH, HCC, Fibrolamellar HCC,
Hepatic Masses on ... T2, Arterial, Portal ... Venous, Delayed, Hepato-Biliary ... CBarreraMD #Hepatic ... diagnosis #liver #hepatology
Portal Hypertension - Differential Diagnosis
Portal Pressure = the pressure difference between the pressure in the portal
hepatorenal syndrome Clues ... g/dl (suggest hepatic ... : • Cardiac causes ... Differential #Diagnosis #causes ... #hepatology
Hepatic Masses on CT - Differential Diagnosis by CT Findings

Masses: Hemangioma, Adenoma, FNH, HCC, Fibrolamellar HCC,
Hepatic Masses on ... Arterial Phase, Portal ... CBarreraMD #Hepatic ... #Masses #CT #CTA ... diagnosis #liver #hepatology