10 results
Hypophosphatemia - Differential Diagnosis Algorithm

Transcellular Shift
 • Recovery From DKA
 • Refeeding Syndrome
 • Acute Respiratory
- Differential ... Hypokalemia • Hypomagnesemia ... • Small bowel diarrhea ... • Anorexia • Chronic ... Diarrhea #Hypophosphatemia
Hypomagnesemia - Etiologies by Mechanism

Decreased GI Uptake 
 - Poor dietary intake (particularly common in alcoholics)
inhibitors - Primary ... GI losses - Chronic ... diarrhea / IBD ... #Differential # ... Magnesium #Table #Classification
Workup for Hypophosphatemia - Differential Diagnosis Framework
Rule out spurious hypophosphatemia: paraproteinemia, acute leukemia
Measure Urine Fractional Excretion
- Differential ... Malabsorption, Chronic ... diarrhea, Poor ... Normal or High PTH: Primary ... #Differential #
Hypokalemia - Differential Diagnosis
Poor Intake 
 - Starvation
 - Anorexia
GI Losses 
 - Vomiting / NG
Hypokalemia - Differential ... NG drainage - Diarrhea ... Ureterosigmoidostomy Urinary ... - Polyuria - Hypomagnesemia ... Potassium #Table #Classification
Hypophosphatemia - Differential Diagnosis Algorithm
Appropriately Low Kidney Phosphate Excretion:
 • Decreased GI Absorption: Chronic Diarrhea, Antacids,
Hypophosphatemia ... - Differential ... GI Absorption: Chronic ... Diarrhea, Antacids ... • N Vitamin D: Primary
Metabolic Alkalosis - Differential Diagnosis Algorithm - Urinary Chloride
 • Cl- responsive metabolic alkalosis
Metabolic Alkalosis - Differential ... Diagnosis Algorithm - Urinary ... Congenital chloride diarrhea ... Gitelman syndrome, Hypomagnesemia ... diarrhea, Kidney
Causes of Hypomagnesemia
Redistribution:
 - IV glucose
 - Correction of diabetic ketoacidosis
 - IV hyperalimentation
 - Refeeding
Causes of Hypomagnesemia ... biliary fistula - Diarrhea ... depletion - Familial hypophosphatemia ... aldosteronism #Hypomagnesemia ... Causes #diagnosis #differential
Causes of Hypomagnesemia
 • Redistribution: IV glucose, Correction of diabetic ketoacidosis, IV hyperalimentation, Refeeding after starvation,
Causes of Hypomagnesemia ... biliary fistula, Diarrhea ... depletion, Familial hypophosphatemia ... Hypercalcemic states, Primary ... #Causes #differential
Metabolic Alkalosis - Urinary Chloride Algorithm
Cl- responsive metabolic alkalosis
 • Kidney loss of Cl-
Metabolic Alkalosis - Urinary ... Gitelman syndrome, Hypomagnesemia ... metabolic acidosis • Chronic ... D-lactic acidosis • Chronic ... Algorithm #nephrology #differential
Causes of Hypokalemia
Transcellular Shifts:
 - Alkalosis, Increased plasma insulin (treatment of diabetic ketoacidosis), ß-Adrenergic agonists, Hypokalemic
Alcoholism (worsened by hypomagnesemia ... nasogastric suction, Diarrhea ... - Diuretics (carbonic ... Fever Other: - Hypomagnesemia ... Hypokalemia #Causes #differential