25 results
How to Evaluate an Abnormal APTT
Step 1: Is the PT or APTT Artifactually Prolonged?
Step 2: Is
Evaluate an Abnormal APTT ... : Is the PT or APTT ... K Antagonists, Heparin ... #prolonged #diagnosis ... #hematology #evaluation
Appearance of Liver Lesions on Computed Tomography (CT) - Arterial Phase, Portal Venous Phase and Delayed
Appearance of Liver ... malformation, Infantile ... #differential #diagnosis ... #comparison #table ... #appearance #hepatology
Approach to Thrombotic Microangiopathy (TMA) - Differential Diagnosis and Management Algorithm

Suspected TMA: Unexplained thrombocytopenia + MAHA
- Differential Diagnosis ... hemoglobin/hemosiderin, Hepatic ... antiglobulin test, PT/aPTT ... hemosiderin • PT/aPTT ... Management #Algorithm #hematology
Appearance of Liver Lesions on Various Imaging Modalities
 • Computed Tomography (CT) - Arterial Phase, Portal
Appearance of Liver ... malformation, Infantile ... #differential #diagnosis ... #comparison #table ... #appearance #hepatology
Prothrombin Time (PT) and Partial Thromboplastin Time (PTT)

Prothrombin Time (PT) - Often Elevated in:
 • Vitamin
Thromboplastin Time (PTT ... inhibitor • Liver ... elevated in: • Heparin ... Thromboplastin #laboratory #hematology ... #diagnosis
Differential Diagnosis for a Prolonged PT and aPTT
If the PT and the aPTT are both prolonged,
Differential Diagnosis ... thrombin inhibitors, heparin ... • Reduced liver ... Prolonged #Causes #diagnosis ... #differential #hematology
Causes of Abnormal PT and/or aPTT
Prolonged Prothrombin Time (PT)
1. Acquired deficiency of FVII
Early liver disease ... unfractionated heparin ... Reduced liver synthesis ... Prolonged #Causes #diagnosis ... #differential #hematology
Summary of Coagulation Deficiencies
Inherited:
 • Hemophilia A - Deficiency of Factor VIII
 • Hemophilia B -
Medications - Heparin ... ) • Advanced Liver ... • Acute DIC - Septic ... Summary #table #comparison ... #diagnosis #hematology
Appearance of Liver Lesions on Contrast Enhanced Ultrasound - Early arterial, Grayscale phase, Late arterial phase,
Appearance of Liver ... malformation, Infantile ... #differential #diagnosis ... #comparison #table ... #appearance #hepatology
Appearance of Liver Lesions on Magnetic Resonance Imaging (MRI) - T2, T1 precontrast, T1 portal venous,
Appearance of Liver ... malformation, Infantile ... #differential #diagnosis ... #comparison #table ... #appearance #hepatology