51 results
Chronic Diarrhea - Workup
Osmotic:
 • Consider food diary and trial avoiding certain foods or meds, Consider
intolerance suspected, Colonoscopy ... performed, may show melanosis ... EGD +/- ERCP +/- colonoscopy ... Inflammatory: • Colonoscopy ... Workup #diagnosis #differential
Hypokalemia - Differential Diagnosis Algorithm

Transcellular Shift:
 • Alkalosis
 • ↑ beta-2 adrenergic simulation 
 • Erythropoiesis
Hypokalemia - Differential ... Transcellular Shift ... Transcellular shifts ... #Hypokalemia #Differential
Melanosis coli on Colonoscopy
 - Benign finding on colonoscopy
 - Ask about senna (anthranoid) use
Melanosis coli on ... Colonoscopy - ... Benign finding on colonoscopy ... , ↑ adenomas #Melanosis ... #coli #Colonoscopy
Causes of Hyperkalemia - Differential Diagnosis Algorithm
 • Increased Intake
 • Reduced Excretion (IV potassium with
Hyperkalemia - Differential ... Transcellular Shift ... Hyperkalemia #Nephrology #Differential
Oxyhemoglobin Dissociation Curve 

Left Shift - decreased unloading of O2 at tissue level (i.e.  increased
Curve Left Shift ... Hypophosphatæmia Right Shift ... #Left #Right #Shift ... #Differential #
Acute Esophageal Necrosis
History: Hematemesis and/or melena (70%), Dysphagia, Epigastric/chest pain, Sepsis
Diagnosis EGD and Biopsy
Differential: Melanosis, Melanoma,
EGD and Biopsy Differential ... : Melanosis, Melanoma
Types of Melanoma
Superficial Spreading
 • Most common form
 • Often develops in previously benign mole
 •
• 70% of all melanomas ... 10-15% of all melanomas ... • <5% of all melanomas ... Only 3% of all melanomas ... Melanoma #Types #differential
Causes of Hypokalemia - Differential Diagnosis Algorithm
Increased Loss 
 - Increased GI Loss
 - Increased Urinary
Hypokalemia - Differential ... Transcellular Shift ... #Hypokalemia #Differential
Causes of Hypokalemia - Differential Diagnosis Algorithm
Once pseudohypokalemia is ruled out, causes of hypokalemia can be
Hypokalemia - Differential ... (transcellular shift ... #Hypokalemia #Differential
Hypokalemia Differential Diagnosis Algorithm

Low intake 
• poor oral intake 

Renal loss 
• Medication 
• Hypomagnesemia 
•
Hypokalemia Differential ... Transcellular shift ... #Hypokalemia #Differential