23 results
Physiologic Approach to Hypotonic Hyponatremia
The next time you have a case of hypotonic hyponatremia, give the
Urine Na+K / serum ... , Post-AKI diuresis ... syndrome) • ADH ... #table #sodium ... #nephrology
Causes of Hyponatremia - Differential Diagnosis Algorithm
Syndrome of Inappropriate ADH - Euvolemic; no physiologic stimulus to
Algorithm Syndrome ... Cirrhosis • Nephrotic ... GFR, AKI/CRF Hormonal ... Hypo-osmolar urine ... #Diagnosis #Algorithm
Causes of Hyponatremia - Differential Diagnosis Algorithm
Syndrome of Inappropriate ADH - Euvolemic; no physiologic stimulus to
Algorithm Syndrome ... Cirrhosis • Nephrotic ... GFR, AKI/CRF Hormonal ... Hypo-osmolar urine ... #Diagnosis #Algorithm
Volume Based Approach to Hyponatremia
Hypovolemic, Serum uric acid >4
 • Urine Na <20: Extra-renal losses
 •
Hypothyroidism, Low ... failure, Cirrhosis, Nephrotic ... syndromeUrine ... #algorithm #diagnosis ... #sodium #low #nephrology
Modified Hyponatremia Algorithm
Hypertonic Hyponatremia: Hyperglycemia, Mannitol, Urologic irrigants
Hypotonic Hyponatremia: 
 • ADH ON (UOsm > 100):
syndrome - ... , Medications (diuretics ... Primary polydipsia, Low ... #Algorithm #diagnosis ... #sodium #nephrology
Hypernatremia - Differential Diagnosis Workup Algorithm

1) Check Urine Osmolality:
 > 600 mOsm/kg - Implies extrarenal mechanism
Differential Diagnosis ... Workup Algorithm ... 1) Check Urine ... • Euvolemic (Low ... #nephrology #sodium
Primary Metabolic Alkalosis - Differential Diagnosis Algorithm
Volume Depleted 2° hyperaldosteronism
 • Low Urine Cl-: Vomiting, NGT
- Differential Diagnosis ... Algorithm Volume ... Urine Cl-: Vomiting ... Cl-: Diuretics, ... #Algorithm #nephrology
Causes of Hyponatremia - Differential Diagnosis Algorithm
Hypovolemia, UNa > 20: 
 • Renal losses, Diuretic excess,
Causes of Hyponatremia ... - Differential Diagnosis ... Algorithm Hypovolemia ... , UNa < 20 • Nephrotic ... #nephrology
Primary Metabolic Alkalosis - Differential Diagnosis Algorithm
Volume Depleted - 2° hyperaldosteronism
 • Low Urine Cl-: Vomiting,
- Differential Diagnosis ... Algorithm Volume ... Urine Cl-: Vomiting ... Cl-: Diuretics, ... #Algorithm #Nephrology
Hypernatremia Diagnosis and Workup

Step 1 . Repeat the sodium concentration.
Step 2.  Check plasma osmolality.
NORMAL PLASMA
Hypernatremia Diagnosis ... volume loss - diuretics ... liver failure • nephrotic ... syndrome • renal ... #Algorithm #Nephrology