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 ... #Differential #Diagnosis ... #management #Algorithm
Lower GI Bleed - Differential Diagnosis Algorithm

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

Transcellular Shift:
 • Alkalosis
 • ↑ beta-2 adrenergic simulation 
 • Erythropoiesis
- Differential Diagnosis ... Algorithm Transcellular ... Non-renal losses: • GI ... #Differential #Diagnosis ... #Algorithm #nephrology
Pulmonary Function Testing (PFT) Interpretation Algorithm

Restrictive Lung Disease:
 • Chest wall or neuromuscular disorders
 • Interstitial
Interpretation Algorithm ... Lung Disease Obstructive ... Interpretation #Algorithm ... #diagnosis #asthma
Iron Deficiency Anemia - Differential Diagnosis Algorithm

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

 • Blood loss:
- Differential Diagnosis ... Algorithm Labs ... • Blood loss: GI ... #Differential #Diagnosis ... #Algorithm #ferritin
Hypernatremia - Differential Diagnosis Workup Algorithm

1) Check Urine Osmolality:
 > 600 mOsm/kg - Implies extrarenal mechanism
- Differential Diagnosis ... Workup Algorithm ... Hypovolemic (H2O loss): GI ... #Differential #Diagnosis ... #Workup #Algorithm
Lower GI Bleed - Management Algorithm

Suspected lower GI bleeding (LGIB):
 • Hematochezia 
 • Melena +
Lower GI Bleed - ... Management Algorithm ... Suspected lower GI ... Rule out upper GI ... GIBleed #management #Algorithm
Algorithmic Approach to Acute Interstitial Nephritis
When to suspect AIN? (not sensitive)
 • AKI, AKD, rapidly progressive
Algorithmic Approach ... Nephritis #AIN #Algorithm ... #nephrology #diagnosis
Algorithmic Approach to Anemia - Differential Diagnosis Framework by MCV

Microcytic (MCV < 80) "TAILS":
 • Thalassemia
Algorithmic Approach ... - Differential Diagnosis ... #Anemia #MCV #Algorithm ... #Differential #Diagnosis
Approach to Elevated aPTT / PT - Differential Diagnosis Algorithm

aPTT: Intrinsic / Final
PT: Extrinsic / Final

By
- Differential Diagnosis ... Algorithm aPTT ... aPTT #PT #INR #Algorithm ... #differential #diagnosis