38 results
True Hyponatremia Differential Algorithm

Instead (or in addition) of volume status examination, check urine sodium and serum
Differential Algorithm ... addition) of volume status ... low, uric acid ... and uric acid low ... #Diagnosis #Nephrology
Hypernatremia Diagnosis and Workup

Step 1 . Repeat the sodium concentration.
Step 2.  Check plasma osmolality.
NORMAL PLASMA
Repeat the sodium ... Assess volume status ... • nephrotic syndrome ... Diagnosis #Workup #Algorithm ... #Nephrology
Hypernatremia - Differential Diagnosis Workup Algorithm

1) Check Urine Osmolality:
 > 600 mOsm/kg - Implies extrarenal mechanism
Diagnosis Workup Algorithm ... mOsm/kg - Implies renal ... mechanism 2) Volume Status ... • Euvolemic (Low ... #nephrology #sodium
Hyponatremia Differential Diagnosis Algorithm - Utilizing Uric Acid 
ADH promotes Urea/uric acid excretion along with water
Hyponatremia Differential ... Diagnosis Algorithm ... High Uric Acid → renal ... #nephrology #sodium ... #low #uricacid
Volume Based Approach to Hyponatremia
Hypovolemic, Serum uric acid >4
 • Urine Na <20: Extra-renal losses
 •
Based Approach to Hyponatremia ... Hypothyroidism, Low ... Cirrhosis, Nephrotic syndrome ... #algorithm #diagnosis ... #sodium #low #nephrology
Hyponatremia - Differential Diagnosis Algorithm
ADH Independent:
 • Tea and Toast Syndrome, Beer Potomania - Low solute
Hyponatremia - Differential ... Diagnosis Algorithm ... Tea and Toast Syndrome ... Beer Potomania - Low ... #causes #nephrology
Modified Hyponatremia Algorithm
Hypertonic Hyponatremia: Hyperglycemia, Mannitol, Urologic irrigants
Hypotonic Hyponatremia: 
 • ADH ON (UOsm > 100):
Algorithm Hypertonic ... Cirrhosis, Nephrotic syndrome ... Primary polydipsia, Low ... #Algorithm #diagnosis ... #sodium #nephrology
Causes of Hyponatremia - Differential Diagnosis Algorithm
Syndrome of Inappropriate ADH - Euvolemic; no physiologic stimulus to
Causes of Hyponatremia ... Syndrome of Inappropriate ... Pain/Post-op • Neurologic ... GI losses • Renal ... #Causes
Physiologic Approach to Hypotonic Hyponatremia
The next time you have a case of hypotonic hyponatremia, give the
time you have a case ... normal volume-based algorithm ... can be high or low ... Cirrhosis, Nephrotic syndrome ... #nephrology
Causes of Hyponatremia - Differential Diagnosis Algorithm
Syndrome of Inappropriate ADH - Euvolemic; no physiologic stimulus to
Causes of Hyponatremia ... Syndrome of Inappropriate ... Pain/Post-op • Neurologic ... GI losses • Renal ... #Causes