13 results
Hypernatremia Differential Diagnosis Algorithm - Diabetes Insipidus Workup

Step #1 - Consider the history
Step #2 - Assess
Hypernatremia Differential ... Algorithm - Diabetes Insipidus ... Workup Step ... Management #Algorithm #Sodium ... #nephrology #insipidus
Causes of Hypernatremia - Differential Diagnosis
Inadequate water intake:
 • Lack of access to water
Extrarenal hypotonic fluid
Hypernatremia - Differential ... Central diabetes insipidus ... Hypernatremia #Differential ... Diagnosis #Causes #nephrology ... #sodium #high
Workup for Hyperphosphatemia - Differential Diagnosis Framework
Rule out spurious hyperphosphatemia: paraproteinemia, hyperlipidemia, hemolysis, hyperbilirubinemia, liposomal amphotericin
Workup for Hyperphosphatemia ... - Differential ... #Differential # ... Diagnosis #Framework #Workup ... #phosphate #nephrology
Hypernatremia - Differential Diagnosis Workup Algorithm

1) Check Urine Osmolality:
 > 600 mOsm/kg - Implies extrarenal mechanism
Hypernatremia - Differential ... Diagnosis Workup ... Euvolemic: Diabetes insipidus ... #Algorithm #nephrology ... #sodium
Workup for Hypophosphatemia - Differential Diagnosis Framework
Rule out spurious hypophosphatemia: paraproteinemia, acute leukemia
Measure Urine Fractional Excretion
Workup for Hypophosphatemia ... - Differential ... #Differential # ... Diagnosis #Framework #Workup ... #phosphate #nephrology
Hypophosphatemia - Differential Diagnosis Algorithm
Appropriately Low Kidney Phosphate Excretion:
 • Decreased GI Absorption: Chronic Diarrhea, Antacids,
Hypophosphatemia ... - Differential ... #Differential # ... Diagnosis #Algorithm #nephrology ... #phosphorus #workup
Hypocalcemia Workup - Differential Diagnosis Algorithm
 • Low Magnesium, High Magnesium - Functional Hypoparathyroidism
 • High
Hypocalcemia Workup ... - Differential ... Extravascular deposition: Hyperphosphatemia ... #Differential # ... Diagnosis #Algorithm #nephrology
Causes of Hypernatremia - Differential Diagnosis Algorithm
Hypernatremia - Excess free water loss, Serum Sodium >145 mmol/L
High
Hypernatremia - Differential ... water loss, Serum Sodium ... kg • Diabetes Insipidus ... Hypernatremia #Nephrology ... #Differential #
Inherited Defects in Kidney Tubule Epithelial Cells

Renal glucosuria - Na+-dependent glucose cotransporter
Cystinuria - Amino acid transporter
Bartter
cell epithelial sodium ... of epithelial sodium ... Nephrogenic diabetes insipidus ... Defects #Kidney #Nephrology ... #Diagnosis #Differential
Diabetes Insipidus - Diagnosis Algorithm
Tests:
 • Osmolality, Urine AND/OR
 • Osmolality, Serum or Plasma AND
 •
Diabetes Insipidus ... Plasma AND • Sodium ... ARUPLabs #Diabetes #Insipidus ... Diagnosis #Algorithm #nephrology ... #differential