23 results
Causes of Thrombocytopenia - Differential Diagnosis Algorithm
 
Decreased Megakaryopoiesis
 • Aplastic Anemia
 • Toxic Damage (e.g.
Megakaryopoiesis • Aplastic Anemia ... Toxic Damage (e.g ... Displacement (e.g ... Foreign Surface (e.g ... Algorithm #Causes #Hematology
Causes of Thrombocytosis - Differential Diagnosis
Secondary Thrombocytosis (a.k.a Reactive Thrombocytosis):
 • Acute infection
 • Solid organ
malignancies • Anemia ... specifically: iron deficiency ... inflammatory disorders (e.g ... Myelodysplastic syndrome ... Diagnosis #Causes #hematology
Causes of Anemia with Normal Mean Corpuscular Volume (MCV) - Differential Diagnosis Algorithm
Decreased WBCs
 - Decreased/NormaI
Causes of Anemia ... Hypersplenism • Secondary ... (e.g. ... • Early Iron Deficiency ... Algorithm #Causes #Hematology
Causes of Abnormal PT and/or aPTT
Prolonged Prothrombin Time (PT)
1. Acquired deficiency of FVII
Nonspecific inhibitors e.g ... to one factor e.g ... inhibitory drugs e.g ... Nonspecific inhibitor e.g ... #differential #hematology
Differential Diagnosis for a Prolonged PT and aPTT
If the PT and the aPTT are both prolonged,
the PT and the aPTT ... Pre-analytical cause (e.g ... inhibitory drugs (e.g ... specific inhibitor (e.g ... #differential #hematology
Nail Disorders secondary to Systemic Diseases
Nail Fold Abnormality
 • SLE
 • Scleroderma
 • Dermatomyositis
Koilonychia - Spoon-shaped
Spoon-shaped • Iron deficiency ... anemia Onycholysis ... halt nail growth (e.g ... • Nephrotic syndrome ... #dermatology #Differential
Causes of Anemia with Low Mean Corpuscular Volume (MCV) - Differential Diagnosis Algorithm
Decreased Heme Synthesis or
RBC>13 • Iron Deficiency ... (Eg Causes: Chronic ... Secondary to Inflammation ... Other • e.g ... Algorithm #Causes #Hematology
Peripheral Blood Smear Analysis
Hypochromia
Megaloblastic Anemia
Schistocytes: Microangiopathic hemolytic anemia (e.g. DIC, TTP, HUS)
Microspherocytes: Autoimmune hemolytic anemia
Sickled red
Megaloblastic Anemia ... (e.g. ... Autoimmune hemolytic anemia ... Bite cells: G6PD deficiency ... Smear #Analysis #hematology
Algorithmic Approach to Anemia - Differential Diagnosis Framework by MCV

Microcytic (MCV < 80) "TAILS":
 • Thalassemia
inflammation) • Iron deficiency ... Megaloblastic: Folate deficiency ... , B12 deficiency ... aciduria, Drugs (e.g ... Differential #Diagnosis #hematology
Causes of Anemia by Mean Corpuscular Volume (MCV) - Differential Diagnosis Algorithm
Low Mean Corpuscular Volume (<80
80 fL) • Iron Deficiency ... Chronic Disease (e.g ... 100 fL) • B12 Deficiency ... • Folate Deficiency ... Algorithm #Causes #Hematology