33 results
Causes of Hypernatremia - Differential Diagnosis
Inadequate water intake:
 • Lack of access to water
Extrarenal hypotonic fluid
Causes of Hypernatremia ... water Extrarenal hypotonic ... salt intake: • Hypertonic ... #nephrology #sodium ... #high
Causes of Hypernatremia - Differential Diagnosis Algorithm
Hypernatremia - Excess free water loss, Serum Sodium >145 mmol/L
High
Causes of Hypernatremia ... Sodium >145 mmol/L High ... 300 mmol/kg • Hypertonic ... mannitol, glucosuria Low ... #Causes
True Hyponatremia Differential Algorithm

Instead (or in addition) of volume status examination, check urine sodium and serum
Differential Algorithm ... - Urine sodium low ... , uric acid high ... - Urine sodium high ... #Diagnosis #Nephrology
Physiologic Approach to Hypotonic Hyponatremia
The next time you have a case of hypotonic hyponatremia, give the
time you have a case ... of hypotonic hyponatremia ... normal volume-based algorithm ... diuresis can be high ... table #sodium #nephrology
Hypokalemia Differential Diagnosis Algorithm
Hypertensive:
 • High Al, Low R - Primary aldosteronism
 • High Al, High
Hypertensive: • High ... aldosteronism • High ... Al, High R - Secondary ... #nephrology #causes ... #low #potassium
Hyponatremia - Differential Algorithm
Isotonic Hyponatremia: Hyperlipidemia, Hyperproteinemia, Recent TURP
Hypotonic Hyponatremia: 
 • Hypovolemia: Diuretics/Nephropathies, Vomiting, Diarrhea,
Algorithm Isotonic ... , Recent TURP Hypotonic ... #diagnosis #causes ... #nephrology #sodium ... #low
Hyponatremia Differential Diagnosis Algorithm - Utilizing Uric Acid 
ADH promotes Urea/uric acid excretion along with water
Hyponatremia Differential ... Diagnosis Algorithm ... Acid → SIADH - High ... #nephrology #sodium ... #low #uricacid
Hyponatremia - Differential Diagnosis Algorithm
ADH Independent:
 • Tea and Toast Syndrome, Beer Potomania - Low solute
Hyponatremia - Differential ... Diagnosis Algorithm ... Beer Potomania - Low ... Treat with a high ... #causes #nephrology
Hypokalemia - Differential Diagnosis Algorithm
Extra-renal Losses:
 • Normal Acid-Base: Low intake
 • Metabolic acidosis: Gl tract
Differential Diagnosis Algorithm ... Syndrome • HTN, High ... Differential #Diagnosis #Algorithm ... #causes #potassium ... #low #nephrology
Causes of Metabolic Alkalosis - Differential Diagnosis Algorithm
GI Losses - Gastric
 • Vomiting
 • NG suction
GI
Causes of Metabolic ... Barrter's/Gitelman's High ... Renin, High Aldosterone ... Renin, High Aldosterone ... #Causes