35 results
Hypokalemia - Differential Diagnosis Algorithm
Extra-renal Losses:
 • Normal Acid-Base: Low intake
 • Metabolic acidosis: Gl tract
Hypokalemia - Differential ... Normal Acid-Base: Low ... Gl tract loss (Diarrhea ... #Hypokalemia #Differential ... causes #potassium #low
Hypokalemia - Differential Diagnosis Algorithm

Transcellular Shift:
 • Alkalosis
 • ↑ beta-2 adrenergic simulation 
 • Erythropoiesis
Hypokalemia - Differential ... • Refeeding syndrome ... losses (NG suction, diarrhea ... vomiting) • Low ... Algorithm #nephrology #low
Chronic Diarrhea - Differential Diagnosis Algorithm
Steatorrhea
 - Maldigestive
    • Pancreatic Insufficiency
 - Primary
Chronic Diarrhea ... - Differential ... Cancer • Microscopic ... Lymphoma #Chronic #Diarrhea ... #SmallBowel #Differential
Workup for Hypophosphatemia - Differential Diagnosis Framework
Rule out spurious hypophosphatemia: paraproteinemia, acute leukemia
Measure Urine Fractional Excretion
Hypophosphatemia - Differential ... Malabsorption, Chronic diarrhea ... • Normal or Low ... - Normal or Low ... Hypophosphatemia #Differential
Hypomagnesemia - Etiologies by Mechanism

Decreased GI Uptake 
 - Poor dietary intake (particularly common in alcoholics)
losses - Chronic diarrhea ... - Gitelman syndrome ... - Hungry bones syndrome ... Hypomagnesemia #Differential ... #Diagnosis #Low
Hypophosphatemia - Differential Diagnosis Algorithm
Appropriately Low Kidney Phosphate Excretion:
 • Decreased GI Absorption: Chronic Diarrhea, Antacids,
Hypophosphatemia - Differential ... Appropriately Low ... Absorption: Chronic Diarrhea ... Tumor Genesis Syndrome ... Hypophosphatemia #Differential
Algorithm for patients with hypokalemia on the basis of the potassium-to-creatinine ratio in the urine
Urine K+
Gastrointestinal loss: Diarrhea ... Low-normal EABV ... , Low Plasma HCO3 ... Plasma HCO3- • Low ... urine #potassium #differential
Metabolic Alkalosis - Differential Diagnosis Algorithm - Urinary Chloride
 • Cl- responsive metabolic alkalosis
Metabolic Alkalosis - Differential ... Congenital chloride diarrhea ... - Normal/low ... , Gitelman syndrome ... acidosis: Chronic diarrhea
Causes of Hypomagnesemia - Differential Diagnosis Algorithm
GI LOSS - FeMg < 2-2.5% or 24h Urine Mg
Hypomagnesemia - Differential ... Urine Mg < 10g • Diarrhea ... • Gitelman's syndrome ... Hypomagnesemia #Magnesium #Low ... #Causes #Differential
Hypokalemia Evaluation Algorithm

Before evaluating hypokalemia, life threatening complications such as arrhythmias and paralysis should be looked
Laxative use • Diarrhea ... consumption • Low ... , Gitelman syndrome ... diagnosis #Algorithm #differential ... potassium #nephrology #low