128 results
Hyponatremia Diagnosis Algorithm
UOsm ≥ POsm - Vasopressin-Dependent
 • UNa < 20 mEq/L - Appropriate (↓ EABV)
Hyponatremia Diagnosis Algorithm ... Inappropriate - Consider: SIADH ... Primary polydipsia, Low ... #differential #algorithm ... #causes #nephrology
Hyponatremia - Differential Diagnosis Algorithm
ADH Independent:
 • Tea and Toast Syndrome, Beer Potomania - Low solute
Differential Diagnosis Algorithm ... Beer Potomania - Low ... insufficiency, SIADH ... Differential #Diagnosis #Algorithm ... #causes #nephrology
Hyponatremia Differential Diagnosis Algorithm - Utilizing Uric Acid 
ADH promotes Urea/uric acid excretion along with water
Differential Diagnosis Algorithm ... Uric Acid - Low ... Uric Acid → SIADH ... Differential #Diagnosis #Algorithm ... nephrology #sodium #low
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 ... restriction alone in SIADH ... can be high or low ... differential #diagnosis #table
Classification, Differential Diagnosis, and Features of Hyponatremia According to Volume Status 

Hypervolemic hypernatremia 
 - CHF
- Drugs - SIADH ... Differential #Diagnosis #Table ... #Causes
Modified Hyponatremia Algorithm
Hypertonic Hyponatremia: Hyperglycemia, Mannitol, Urologic irrigants
Hypotonic Hyponatremia: 
 • ADH ON (UOsm > 100):
Modified Hyponatremia Algorithm ... OFF (UNa > 30): SIADH ... Primary polydipsia, Low ... #Hyponatremia #Algorithm
Diagnosis of Hypokalemia - Differential Algorithm 

Categorized by Causes: Redistribution, Extrarenal Losses, Renal Losses (High and
- Differential Algorithm ... Categorized by Causes ... Losses (High and Low ... #Differential #Algorithm
Volume Based Approach to Hyponatremia
Hypovolemic, Serum uric acid >4
 • Urine Na <20: Extra-renal losses
 •
uric acid <4 • SIADH ... Hypothyroidism, Low ... #Hyponatremia #algorithm ... diagnosis #sodium #low
Hyponatremia - Differential Diagnosis Algorithm
Hypovolemic - Give volume
Hypervolemic (Edematous) - Look for and treat underlying cause
Differential Diagnosis Algorithm ... treat underlying cause ... Stress, Nausea, ... , SSRIs) - SIADH ... Differential #Diagnosis #Algorithm
Hyponatremia - Diagnostic Evaluation Algorithm

Step 1: Consider whether Posm may actually be normal or elevated
Step 2:
Diagnostic Evaluation Algorithm ... tests Step 5: If SIADH ... considered likely, the cause ... Workup #Evaluation #Algorithm