11 results
Classification, Differential Diagnosis, and Features of Hyponatremia According to Volume Status 

Hypervolemic hypernatremia 
 - CHF
and Features of Hyponatremia ... Hypervolemic hypernatremia ... - CHF - Cirrhosis ... - Drugs - SIADH ... Diagnosis #Table #Causes
Hyponatremia Diagnosis Algorithm
UOsm ≥ POsm - Vasopressin-Dependent
 • UNa < 20 mEq/L - Appropriate (↓ EABV)
Hyponatremia Diagnosis ... Heart failure, Cirrhosis ... Inappropriate - Consider: SIADH ... @NephroMD #hyponatremia ... differential #algorithm #causes
Hyponatremia - Diagnostic Evaluation Algorithm

Step 1: Consider whether Posm may actually be normal or elevated
Step 2:
Hyponatremia - Diagnostic ... tests Step 5: If SIADH ... considered likely, the cause ... DrEricStrong #Hyponatremia ... #Diagnosis #Workup
Hyponatremia - Differential Diagnosis Algorithm
Hypovolemic - Give volume
Hypervolemic (Edematous) - Look for and treat underlying cause
Hyponatremia - Differential ... treat underlying cause ... (CHF, cirrhosis ... , SSRIs) - SIADH ... UnremarkableLab #Hyponatremia
Hyponatremia - Differential Diagnosis by Mechanism
Decr Blood Pressure (“Decr Effective Circulating Volume”) 
 - Volume depletion
Hyponatremia - Differential ... Heart failure - Cirrhosis ... ADH secretion (SIADH ... DrEricStrong #Hyponatremia ... Diagnosis #Table #Causes
Management of SIADH
Treat underlying cause:
 • Causes can include pain, primary lung pathology, post-operative phenomenon, medications,
Management of SIADH ... : • Causes can ... Contraindicated in cirrhosis ... SatyaPatelMD #SIADH ... #Management #hyponatremia
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 ... restriction alone in SIADH ... Present (Uosm ≥100): SIADH ... Heart failure, Cirrhosis
SIADH Treatment Options
1. Treat underlying cause of SIADH: Pain, Primary lung pathology, Post-operative phenomenon, Medications, Basically
SIADH Treatment ... of SIADH: Pain, ... administered • This can cause ... Contraindicated in cirrhosis ... #Management #hyponatremia
Management of Hyponatremia
Hypertonic Saline - Only indicated if patient has severe symptoms + Na < 125
Give
Management of Hyponatremia ... • Cirrhosis - ... Normalizes in SIADH ... • IF SIADH — ... look for cause
Hyponatremia - Differential Algorithm
Isotonic Hyponatremia: Hyperlipidemia, Hyperproteinemia, Recent TURP
Hypotonic Hyponatremia: 
 • Hypovolemia: Diuretics/Nephropathies, Vomiting, Diarrhea,
Hyponatremia - Differential ... Algorithm Isotonic Hyponatremia ... • Euvolemia: SIADH ... Failure, Liver Cirrhosis ... Algorithm #diagnosis #causes