9 results
Hyponatremia - Differential Diagnosis Algorithm
Hypovolemic - Give volume
Hypervolemic (Edematous) - Look for and treat underlying cause
Diagnosis Algorithm ... Solute Intake - Primary ... Polydipsia - Beer Potomania ... , SSRIs) - SIADH ... diagnosis #nephrology #sodium
Modified Hyponatremia Algorithm
Hypertonic Hyponatremia: Hyperglycemia, Mannitol, Urologic irrigants
Hypotonic Hyponatremia: 
 • ADH ON (UOsm > 100):
Algorithm Hypertonic ... OFF (UNa > 30): SIADH ... (UOsm < 100): Primary ... solute intake, Beer potomania ... #sodium #nephrology
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 ... Urine Na+K / serum ... water intake (Primary ... solute intake (Beer potomania
Hyponatremia - Differential Diagnosis by Mechanism
Decr Blood Pressure (“Decr Effective Circulating Volume”) 
 - Volume depletion
secretion (SIADH ... renal failure - Primary ... polydipsia - Beer potomania ... Diagnosis #Table #Causes ... #Sodium
Primary Polydipsia
Definition: Excessive volitional water intake
Epidemiology:
 • 6-20% of patients with psychiatric disorders - Most commonly
ADH suppression ... with suppressed ADH ... Pseudohyponatremia, SIADH ... Osm, Serum Sodium ... , Urine Sodium
Hyponatremia (<135 mEq/L) is a common electrolyte abnormality caused by an excess of total body water
electrolyte abnormality caused ... Measured urine sodium ... #hyponatremia #ADH ... Hypovolemia #EBV #potomania ... #SIADH #Thiazides
Management of SIADH
Treat underlying cause:
 • Causes can include pain, primary lung pathology, post-operative phenomenon, medications,
include pain, primary ... promoting passive sodium ... Saline: • If Urine ... antagonists: • Blocks ADH ... #nephrology #treatment
SIADH Treatment Options
1. Treat underlying cause of SIADH: Pain, Primary lung pathology, Post-operative phenomenon, Medications, Basically
SIADH Treatment ... Primary lung pathology ... promoting passive sodium ... vaptans) • Blocks ADH ... #Management #hyponatremia
Management of Hyponatremia
Hypertonic Saline - Only indicated if patient has severe symptoms + Na < 125
Give
Management of Hyponatremia ... • IF SIADH — ... look for cause ... #Management #algorithm ... #treatment #sodium