26 results
Hyponatremia Differential Diagnosis Algorithm - Utilizing Uric Acid 
ADH promotes Urea/uric acid excretion along with water
Hyponatremia Differential ... Utilizing Uric Acid ADH ... Sodium 4) Serum ... #Differential # ... Diagnosis #Algorithm #nephrology
Causes of Hyponatremia - Differential Diagnosis Algorithm
Syndrome of Inappropriate ADH - Euvolemic; no physiologic stimulus to
Causes of Hyponatremia ... - Differential ... Malignancy True hypovolemia ... Hypo-osmolar urine ... #Nephrology #Differential
Causes of Hyponatremia - Differential Diagnosis Algorithm
Syndrome of Inappropriate ADH - Euvolemic; no physiologic stimulus to
Causes of Hyponatremia ... - Differential ... Malignancy True hypovolemia ... Hypo-osmolar urine ... #Nephrology #Differential
Modified Hyponatremia Algorithm
Hypertonic Hyponatremia: Hyperglycemia, Mannitol, Urologic irrigants
Hypotonic Hyponatremia: 
 • ADH ON (UOsm > 100):
: • ADH ON (UOsm ... ON (UNa < 30): Hypovolemia ... Cirrhosis, Nephrotic syndrome ... Algorithm #diagnosis #sodium ... #nephrology
Physiologic Approach to Hypotonic Hyponatremia
The next time you have a case of hypotonic hyponatremia, give the
volume-based algorithm Urine ... Present (Uosm ≥100): Hypovolemia ... Cirrhosis, Nephrotic syndrome ... #differential # ... #nephrology
Etiologies of Hypernatremia - Differential Diagnosis
GI losses / Insensible losses
Sodium Overload
Transcellular Movement of Water
Central Diabetes Insipidus
Etiologies of Hypernatremia ... - Differential ... Insensible losses Sodium ... sensitivity in kidneys ... hypercalcemia - Chronic hypokalemia
Hyponatremia - Differential Diagnosis Algorithm
Hypovolemic - Give volume
Hypervolemic (Edematous) - Look for and treat underlying cause
Hyponatremia - Differential ... cirrhosis, nephrotic syndrome ... • UOsm > 300 - ADH ... Algorithm #diagnosis #nephrology ... #sodium
Urine Specific Gravity - Interpretation
Specific Gravity = Density of urine / Density of water
SG close to
resistance to ADH ... 1.010: • Advanced kidney ... Dehydration • SIADH (syndrome ... Interpretation #diagnosis #differential ... #nephrology
Hyponatremia Diagnostic Algorithm
1) Check serum osmolality
2) Check urine osmolality
3) ADH Dependent - Check volume status, urine
osmolality 3) ADH ... volume status, urine ... sodium, uric acid ... Diagnosis #Algorithm #differential ... nephrology
Hyponatremia (<135 mEq/L) is a common electrolyte abnormality caused by an excess of total body water
helps to differentiate ... collecting duct in the kidneys ... Measured urine sodium ... #hyponatremia #ADH ... #RAAS #Hypovolemia