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

Dr.
Investigation of Abnormal ... #Coagulation #Abnormal ... APTT #Laboratory #Hematology ... #Diagnosis #Workup
Causes of Bleeding / Bruising - Differential Diagnosis Algorithm
Thrombocytopenia - Quantitative Defect
 • Decreased Production
 •
Destruction • Abnormal ... Qualitative Defect • Congenital ... Vascular System - Congenital ... Coagulation Proteins - Congenital ... Algorithm #Causes #Hematology
Causes of Polycythemia (Erythrocytosis) - Differential Diagnosis Algorithm
Relative - Normal RBC Mass / Decreased Plasma Volume
Saturation 90%, Abnormal ... carboxyhemoglobin, Abnormal ... early onset • Congenital ... Heart Disease Abnormal ... Algorithm #Causes #Hematology
Pancytopenia - Workup and Differential Diagnosis Algorithm
Consumption Disorders
 1. Autoimmune Mediated Pancytopenia
 2. Splenic Sequestration
Peripheral Destruction
Pancytopenia - Workup ... Hypoplastic MDS • Congenital ... #Pancytopenia #Workup ... Diagnosis #Algorithm #Hematology
Abnormal Liver Function Tests - Differential Diagnosis Algorithm for Transaminitis
Hepatocellular Pattern (ALT or AST > ALP):
Abnormal Liver Function ... AST): • US - Normal ... Infiltrative, Congenital ... LFTs #Elevated #Abnormal ... Algorithm #diagnosis #hepatology
Pancytopenia - Workup and Differential Diagnosis Algorithm
Consumption Disorders
 1. Autoimmune Mediated Pancytopenia
 2. Splenic Sequestration
Peripheral Destruction
Pancytopenia - Workup ... Hypoplastic MDS • Congenital ... #Pancytopenia #Workup ... Diagnosis #Algorithm #Hematology
Elevated Liver Enzymes - Differential Diagnosis Algorithm
Severe ALT > 15x ULN
 • Viral
 • Drugs/Toxins
 •
disease US — Normal ... Cirrhosis (any) • Congenital ... Others #LFTs #Hepatology
Overall Approach to Anemia - Differential Diagnosis Algorithm

Blood Loss
 • Acute Bleed - Normocytic / Normochromic
RBC Production - Normal ... Spherocytes on Smear - Congenital ... Algorithm #Causes #Hematology
Hemolytic Anemia - Differential Diagnosis Algorithm
 • Sickle cells - Consider sickle cell disease (diverse genotypes):
Basophilic stippling - Congenital ... Diagnosis #Algorithm #workup ... #hematology #testing
Appearance of Liver Lesions on Various Imaging Modalities
 • Computed Tomography (CT) - Arterial Phase, Portal
Infantile hemangioma, Congenital ... CT #MRI #POCUS #radiology ... table #appearance #hepatology