Algorithms in Medicine @MatthewHoMD
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Matthew Ho, MD PhD https://twitter.com/MatthewHoMD
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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 ... Causes of Upper GI ... Differential #Diagnosis #management
Lower GI Bleed - Management Algorithm

Suspected lower GI bleeding (LGIB):
 • Hematochezia 
 • Melena +
Lower GI Bleed - ... Management Algorithm ... Suspected lower GI ... Rule out upper GI ... LGIB #GIBleed #management
Additional Modalities for Workup of GI Bleed (Other than EGD + Colonoscopy)

Pill endoscopy
 • Able to
for Workup of GI ... MatthewHoMD #GI ... Bleed #GIBleed #management
Lower GI Bleed - Differential Diagnosis Algorithm

 • Structural: Diverticulosis, Hemorrhoids, Post-polypectomy, Polyps & malignancy, Anal
Lower GI Bleed - ... MatthewHoMD #Lower #GI
Hypokalemia - Differential Diagnosis Algorithm

Transcellular Shift:
 • Alkalosis
 • ↑ beta-2 adrenergic simulation 
 • Erythropoiesis
Non-renal losses: • GI
Acute Coronary Syndrome - Management Algorithm
 • STEMI
 • NSTEMI (Troponin Positive) / Unstable Angina (UA,
Coronary Syndrome - Management ... Troponin Negative) Management ... Syndrome #ACS #Management
Iron Deficiency Anemia - Differential Diagnosis Algorithm

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

 • Blood loss:
• Blood loss: GI
Stroke Evaluation and Management Algorithm

Clinical suspicion of stroke (BE FAST)
 • Balance loss
 • Eyes: vision
Evaluation and Management ... Klaas #Stroke #Management
Abdominal Aortic Aneurysm (AAA) Management and Surveillance

- Screening should be considered for more than just men
Aneurysm (AAA) Management ... Aneurysm #AAA #Management
Hypernatremia - Differential Diagnosis Workup Algorithm

1) Check Urine Osmolality:
 > 600 mOsm/kg - Implies extrarenal mechanism
Hypovolemic (H2O loss): GI