18 results
Volume Based Approach to Hyponatremia
Hypovolemic, Serum uric acid >4
 • Urine Na <20: Extra-renal losses
 •
acid <4 • SIADH, Hypothyroidism ... , Low solute intake ... #Hyponatremia #algorithm ... diagnosis #sodium #low ... #nephrology
Hyponatremia - Differential Diagnosis Algorithm
ADH Independent:
 • Tea and Toast Syndrome, Beer Potomania - Low solute
Differential Diagnosis Algorithm ... Beer Potomania - Low ... • Euvolemic - Hypothyroidism ... Differential #Diagnosis #Algorithm ... #causes #nephrology
Physiologic Approach to Hypotonic Hyponatremia
The next time you have a case of hypotonic hyponatremia, give the
algorithm Urine ... can be high or low ... Uosm), Hypothyroidism ... Primary polydipsia), Low ... table #sodium #nephrology
True Hyponatremia Differential Algorithm

Instead (or in addition) of volume status examination, check urine sodium and serum
Hyponatremia Differential Algorithm ... in addition) of volume ... - Urine sodium low ... and uric acid low ... #Diagnosis #Nephrology
Causes of Anemia by Mean Corpuscular Volume (MCV) - Differential Diagnosis Algorithm
Low Mean Corpuscular Volume (<80
Differential Diagnosis Algorithm ... Low Mean Corpuscular ... Volume (<80 fL) ... Liver Disease • Hypothyroidism ... Differential #Diagnosis #Algorithm
Modified Hyponatremia Algorithm
Hypertonic Hyponatremia: Hyperglycemia, Mannitol, Urologic irrigants
Hypotonic Hyponatremia: 
 • ADH ON (UOsm > 100):
Modified Hyponatremia Algorithm ... Medications (diuretics), Hypothyroidism ... Primary polydipsia, Low ... solute intake, ... diagnosis #sodium #nephrology
Primary Metabolic Alkalosis - Differential Diagnosis Algorithm
Volume Depleted - 2° hyperaldosteronism
 • Low Urine Cl-: Vomiting,
Differential Diagnosis Algorithm ... Volume Depleted ... Gitelman Syndrome Volume ... Differential #Diagnosis #Algorithm ... #Nephrology #Causes
Primary Metabolic Alkalosis - Differential Diagnosis Algorithm
Volume Depleted 2° hyperaldosteronism
 • Low Urine Cl-: Vomiting, NGT
Differential Diagnosis Algorithm ... Volume Depleted ... Gitelman Syndrome Volume ... Differential #Diagnosis #Algorithm ... #nephrology
Hypernatremia Diagnosis and Workup

Step 1 . Repeat the sodium concentration.
Step 2.  Check plasma osmolality.
NORMAL PLASMA
Assess volume status ... • extra-renal volume ... • SIADH • hypothyroidism ... Diagnosis #Workup #Algorithm ... #Nephrology
Hyponatremia - Differential Diagnosis Algorithm
Hypovolemic - Give volume
Hypervolemic (Edematous) - Look for and treat underlying cause
Differential Diagnosis Algorithm ... Hypovolemic - Give volume ... CKD, Thiazides, Hypothyroidism ... Differential #Diagnosis #Algorithm ... #diagnosis #nephrology