63 results
Causes of Polycythemia (Erythrocytosis) - Differential Diagnosis Algorithm
Relative - Normal RBC Mass / Decreased Plasma Volume
Algorithm Relative - Normal ... Positive - Low/Normal ... Saturation 90%, Abnormal ... Heart Disease Abnormal ... #Hematology
Causes of Anemia with Normal Mean Corpuscular Volume (MCV) - Differential Diagnosis Algorithm
Decreased WBCs
 - Decreased/NormaI
with Normal Mean ... PRV, Chronic) Normal ... Anemias (MAHA) - Abnormal ... Hemoglobinopathy - Normal ... #Hematology
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 Prolonged PT (INR), Prolonged PTT
 • Prolonged PT (INR), Prolonged PTT
 • Prolonged PT
Prolonged PT (INR), Normal ... Prolonged PTT, Normal ... Prolonged PTT, Normal ... #Differential #Diagnosis ... #Hematology #coagulation
Causes of Anemia with elevated Mean Corpuscular Volume (MCV) - Differential Diagnosis Algorithm
Normal Blood Smear
 •
Algorithm Normal ... Target Cells, Normal ... WBCs - Normal ... Deficiency - Abnormal ... #Hematology
Causes of Anemia with Low Mean Corpuscular Volume (MCV) - Differential Diagnosis Algorithm
Decreased Heme Synthesis or
Deficiency) Ferritin normal ... decreased, TIBC normal ... , TIBC Normal - ... Increased HgbA2, Normal ... #Hematology
Erythrocytosis - Polycythemia Differential Diagnosis Algorithm

Elevated Hemoglobin:
 • Males: Hb > 16.5 g/dL/HCT ≥ 49%
 •
Polycythemia Differential Diagnosis ... Polycythemia - Acquired Causes ... Hypoxia-driven: Cardiac/pulmonary ... ), TEMPI (VEGF normal ... #Algorithm #hematology
How to Evaluate an Abnormal APTT
Step 1: Is the PT or APTT Artifactually Prolonged?
Step 2: Is
to Evaluate an Abnormal ... to identify the cause ... ISNeducation #Abnormal ... APTT #prolonged #diagnosis ... #hematology #evaluation
Dilated Abdominal Veins and Caput Medusae - Direction of Blood Flow

Vein Milking technique can be used
determine the cause ... • Normal veins ... : The normal physiology ... #physicalexam #diagnosis ... #hepatology #cirrhosis
Causes of Bleeding / Bruising - Differential Diagnosis Algorithm
Thrombocytopenia - Quantitative Defect
 • Decreased Production
 •
Causes of Bleeding ... - Differential Diagnosis ... Destruction • Abnormal ... #Algorithm #Causes ... #Hematology