Algorithms in Medicine @MatthewHoMD
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Matthew Ho, MD PhD https://twitter.com/MatthewHoMD
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Approach to Leukocytosis - Differential Diagnosis Algorithm

Features of hematologic malignancy:
 • Symptoms: B-symptoms, bruising/bleeding, fatigue/weakness, immunosuppression
Differential Diagnosis Algorithm ... Features of hematologic ... anemia, ↑ MCV, ↑/↓ platelets ... Differential #Diagnosis #Algorithm ... #hematology #WBC
Approach to Thrombocytosis - Elevated Platelet Count - Differential Diagnosis Algorithm

Peripheral Smear concerning for malignancy?
Thrombocytosis - Elevated Platelet ... Differential Diagnosis Algorithm ... Thrombocytosis #Platelets ... Differential #Diagnosis #Algorithm ... #hematology
Upper GI Bleed - Management Algorithm

Upper GI bleed Suspected: Melena, hematemesis, coffee-ground emesis, BRBPR
Initial Stabilization
Concern for
Upper GI Bleed - ... Management Algorithm ... Upper GI bleed ... EGD Causes of Upper ... Diagnosis #management #Algorithm
Thrombocytopenia - Differential Diagnosis Algorithm

Decreased production:
 • Bone marrow suppression
 • Bone marrow failure
 • Bone
Differential Diagnosis Algorithm ... Differential #Diagnosis #Algorithm ... #hematology #platelets
Pancytopenia - Differential Diagnosis Algorithm
 • 12-13 g/dL,
 • ANC < 1800/uL,
 • platelet < 150,000/uL

Initial
Differential Diagnosis Algorithm ... < 1800/uL, • platelet ... Differential #Diagnosis #Algorithm ... #hematology #workup
Iron Deficiency Anemia - Differential Diagnosis Algorithm

Labs: Ferritin, iron, transferrin, TIBC, TSAT, sTfR

 • Blood loss:
Differential Diagnosis Algorithm ... • Blood loss: GI ... Differential #Diagnosis #Algorithm ... #ferritin #hematology
Lower GI Bleed - Management Algorithm

Suspected lower GI bleeding (LGIB):
 • Hematochezia 
 • Melena +
Lower GI Bleed - ... Management Algorithm ... Suspected lower GI ... Unstable (Rule out upper ... GIBleed #management #Algorithm