6 results
Physiologic Approach to Hypotonic Hyponatremia
The next time you have a case of hypotonic hyponatremia, give the
time you have a case ... volume-based algorithm Urine ... or Ineffective (UNa ... #differential # ... diagnosis #table
Hyponatremia - Differential Diagnosis by Mechanism
Decr Blood Pressure (“Decr Effective Circulating Volume”) 
 - Volume depletion
Hyponatremia - Differential ... ADH secretion (SIADH ... SSRIs) Severe pain ... Diagnosis #Table ... #Causes #Sodium
Hyponatremia (<135 mEq/L) is a common electrolyte abnormality caused by an excess of total body water
electrolyte abnormality caused ... helps to differentiate ... among the possible causes ... Measured urine sodium ... EBV #potomania #SIADH
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 ... osmolality < 538 AND UNa ... #Management #hyponatremia
SIADH Treatment Options
1. Treat underlying cause of SIADH: Pain, Primary lung pathology, Post-operative phenomenon, Medications, Basically
of SIADH: Pain, ... promoting passive sodium ... 0.9% NS • If Urine ... osmolality < 538 AND UNa ... #Management #hyponatremia
Hyponatremia Differential Diagnosis Algorithm in Cancer
UOsm ≥ 100 mOsm/kg = Urine is inappropriately concentrated for hypotonic
Hyponatremia Differential ... 100 mOsm/kg = Urine ... inappropriate • SIAD ... chemotherapy, nausea ... , pain) • Cortisol