115 results
Causes of Vitamin B12 Deficiency - Cobalamin
Decreased Intake
Pancreas: Insufficiency
Intestine: SIBO, Celiac disease, IBD, Lymphoma, Amyloidosis, Resection,
Causes of Vitamin ... B12 Deficiency ... Stomach: Pernicious anemia ... gastrectomy, H. pylori infection ... #differential #
Causes of Anemia by Mean Corpuscular Volume (MCV) - Differential Diagnosis Algorithm
Low Mean Corpuscular Volume (<80
Causes of Anemia ... Volume (MCV) - Differential ... Inflammation, Chronic Infection ... (>100 fL) • B12 ... Classification #Differential
Causes of Neutropenia with Pancytopenia - Differential Diagnosis Algorithm
Sequestration:
 • Splenomegaly
Marrow Infiltration:
 • Hematologic and non-hematologic
Causes of Neutropenia ... malignancies • Infection ... Toxins • Aplastic Anemia ... Myelodysplasia Nutritional deficiency ... : • B12/folate
Causes of Thrombocytopenia - Differential Diagnosis Algorithm
 
Decreased Megakaryopoiesis
 • Aplastic Anemia
 • Toxic Damage (e.g.
Causes of Thrombocytopenia ... - Differential ... Megakaryopoiesis • Aplastic Anemia ... Megakaryopoiesis • B12 ... Vasculitis • Infection
Algorithmic Approach to Anemia - Differential Diagnosis Framework by MCV

Microcytic (MCV < 80) "TAILS":
 • Thalassemia
- Differential ... inflammation) • Iron deficiency ... Macroangiopathic, Infections ... , B12 deficiency ... MCV #Algorithm #Differential
Causes of Anemia with elevated Mean Corpuscular Volume (MCV) - Differential Diagnosis Algorithm
Normal Blood Smear
 •
Causes of Anemia ... Volume (MCV) - Differential ... • Dietary Deficiency ... and Folate Deficiency ... #elevatedMCV #Differential
Thrombocytosis - Differential Diagnosis
Platelet Count > 450
Reactive:
 • Anemia/blood loss (Fe deficiency)
 • Infection/Sepsis
 • Non-infectious
Thrombocytosis - Differential ... Reactive: • Anemia ... blood loss (Fe deficiency ... ) • Infection/ ... #Diagnosis #causes
Hemolytic Anemia - Differential Diagnosis Algorithm
Hereditary:
 • Peripheral blood smear + DAT + further History
 •
- Differential ... DAT (-) → G6PD Deficiency ... Recent travel/Fevers ... , DAT (-) → Infection ... Diagnosis #Algorithm #causes
Pancytopenia - Differential Diagnosis

Congenital Diseases:
• GATA2 deficiency
• Fanconi’s anemia
• Wiskott-Aldrich syndrome
• Ribosomopathy or telomeropathy

Cancer:
• Leukemia
• Lymphoma

Inflammatory
Pancytopenia - Differential ... Diseases: • GATA2 deficiency ... • Fanconi’s anemia ... consumption • Vitamin B12 ... Infections:
AEIOU TIPS - Mnemonic for Causes of Altered Mental Status
A - Alcohol, Acidosis, Ammonia, Arrhythmia
E -
AEIOU TIPS - Mnemonic ... , Epilepsy I - Infection ... Oxygen, Opiates U - Uremia ... #MentalStatus #AMS ... encephalopathy #diagnosis #differential