7 results
Workup for Hypophosphatemia - Differential Diagnosis Framework
Rule out spurious hypophosphatemia: paraproteinemia, acute leukemia
Measure Urine Fractional Excretion
Hypophosphatemia - Differential ... Malabsorption, Chronic diarrhea ... absorption (Antacids, Phosphorus ... Glucose, Acute resp. alkalosis ... Workup #phosphate #nephrology
Hypophosphatemia - Differential Diagnosis Algorithm
Appropriately Low Kidney Phosphate Excretion:
 • Decreased GI Absorption: Chronic Diarrhea, Antacids,
Appropriately Low ... Absorption: Chronic Diarrhea ... Acute Respiratory Alkalosis ... Diagnosis #Algorithm #nephrology ... #phosphorus #workup
Hypokalemia - Differential Diagnosis Algorithm

Transcellular Shift:
 • Alkalosis
 • ↑ beta-2 adrenergic simulation 
 • Erythropoiesis
Hypokalemia - Differential ... Transcellular Shift: • Alkalosis ... • Refeeding syndrome ... losses (NG suction, diarrhea ... Diagnosis #Algorithm #nephrology
Metabolic Alkalosis - Urinary Chloride Algorithm
Cl- responsive metabolic alkalosis
 • Kidney loss of Cl-
• Normal/low ... diuretic use, Bartter syndrome ... , Gitelman syndrome ... urine #Algorithm #nephrology ... #differential #
Hypokalemia Evaluation Algorithm

Before evaluating hypokalemia, life threatening complications such as arrhythmias and paralysis should be looked
Laxative use • Diarrhea ... - Metabolic Alkalosis ... diagnosis #Algorithm #differential ... #potassium #nephrology ... #low
Causes of Hypomagnesemia
 • Redistribution: IV glucose, Correction of diabetic ketoacidosis, IV hyperalimentation, Refeeding after starvation,
biliary fistula, Diarrhea ... Potassium depletion, Phosphorus ... Hypomagnesemia #Causes #differential ... #diagnosis #nephrology ... #magnesium #low
Gitelman Syndrome Overview

What?
• Inherited (AR) hypokalemic salt-losing tubulopathies affecting the thiazide-sensitive sodium chloride cotransporter
• Gitelman's syndrome
• Normal or low ... Hypochloremic metabolic alkalosis ... ratio 0.5%) Differential ... Congenital chloride diarrhea ... #diagnosis #nephrology