11 results
Hyponatremia - Differential Diagnosis by Mechanism
Decr Blood Pressure (“Decr Effective Circulating Volume”) 
 - Volume depletion
- Cirrhosis Syndrome ... ADH secretion (SIADH ... renal failure - Primary ... Differential #Diagnosis #Table ... #Causes #Sodium
Modified Hyponatremia Algorithm
Hypertonic Hyponatremia: Hyperglycemia, Mannitol, Urologic irrigants
Hypotonic Hyponatremia: 
 • ADH ON (UOsm > 100):
Cirrhosis, Nephrotic syndrome ... OFF (UNa > 30): SIADH ... (UOsm < 100): Primary ... Algorithm #diagnosis #sodium ... #nephrology
Volume Based Approach to Hyponatremia
Hypovolemic, Serum uric acid >4
 • Urine Na <20: Extra-renal losses
 •
uric acid <4 • SIADH ... Glucocorticoid deficiency, Primary ... Cirrhosis, Nephrotic syndrome ... algorithm #diagnosis #sodium ... #low #nephrology
Physiologic Approach to Hypotonic Hyponatremia
The next time you have a case of hypotonic hyponatremia, give the
, Renal Sodium loss ... Cirrhosis, Nephrotic syndrome ... water intake (Primary ... differential #diagnosis #table ... #sodium #nephrology
Hyponatremia - Differential Diagnosis Algorithm
Hypovolemic - Give volume
Hypervolemic (Edematous) - Look for and treat underlying cause
cirrhosis, nephrotic syndrome ... Solute Intake - Primary ... , SSRIs) - SIADH ... Algorithm #diagnosis #nephrology ... #sodium
Management of SIADH
Treat underlying cause:
 • Causes can include pain, primary lung pathology, post-operative phenomenon, medications,
Management of SIADH ... include pain, primary ... lung pathology, ... promoting passive sodium ... #Management #hyponatremia
Hyponatremia - Diagnosis and Treatment
Hyponatremia is usually caused by the inability to excrete water normally.
(max rate of correction ... /L/day) Rapid correction ... demyelination syndrome ... Diagnosis #Treatment #management ... #nephrology #sodium
SIADH Treatment Options
1. Treat underlying cause of SIADH: Pain, Primary lung pathology, Post-operative phenomenon, Medications, Basically
: Pain, Primary ... lung pathology, ... promoting passive sodium ... #Management #hyponatremia ... #nephrology #treatment
Primary Polydipsia
Definition: Excessive volitional water intake
Epidemiology:
 • 6-20% of patients with psychiatric disorders - Most commonly
• Symptomatic hyponatremia ... Pseudohyponatremia, SIADH ... , Urine Sodium ... Polydipsia #diagnosis #management ... #nephrology
Hypernatremia - Differential Diagnosis and Treatment
Hypernatremia is almost always due to unreplaced water loss (free water
Diagnosis is primarily ... • Rapid correction ... maximum rate of correction ... Diagnosis #Treatment #management ... #nephrology #sodium