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

Hypervolemic hypernatremia 
 - CHF
- CHF - Cirrhosis ... - Nephrotic syndrome ... Acute and chronic kidney ... Drugs - SIADH Renal ... - Diuretics
Hypernatremia - Differential Diagnosis Workup Algorithm

1) Check Urine Osmolality:
 > 600 mOsm/kg - Implies extrarenal mechanism
mOsm/kg - Implies renal ... , Ingestion Renal ... • Hypovolemic: Diuretics ... , Cushing syndrome ... Algorithm #nephrology #sodium
Physiologic Approach to Hypotonic Hyponatremia
The next time you have a case of hypotonic hyponatremia, give the
Approach to Hypotonic Hyponatremia ... ≥100): SIADH, Renal ... Sodium loss (diuretics ... Cirrhosis, Nephrotic syndrome ... diagnosis #table #sodium
Diuretics and Agents Regulating Renal Excretion

Carbonic Anhydrase Inhibitors (Acetazolamide, Dichlorphenamide)
 • Glaucoma
 • Epilepsy
 • Altitude
Regulating Renal ... irrigation • Management ... • Hyponatremia ... and euvolemic hyponatremia ... #Pharmacology #
Hypernatremia Diagnosis and Workup

Step 1 . Repeat the sodium concentration.
Step 2.  Check plasma osmolality.
NORMAL PLASMA
Hypernatremia Diagnosis ... Repeat the sodium ... volume loss - diuretics ... HYPERVOLEMIC • CHF ... • nephrotic syndrome
Etiologies of Hypernatremia - Differential Diagnosis
GI losses / Insensible losses
Sodium Overload
Transcellular Movement of Water
Central Diabetes Insipidus
Etiologies of Hypernatremia ... Insensible losses Sodium ... Insipidus (Decr ADH ... Insipidus (Incr ADH ... sensitivity in kidneys
Causes of Hyponatremia - Differential Diagnosis Algorithm
Syndrome of Inappropriate ADH - Euvolemic; no physiologic stimulus to
Causes of Hyponatremia ... Diagnosis Algorithm Syndrome ... GI losses • Renal ... especially thiazide diuretics ... Reduced GFR, AKI/CRF
Causes of Hyponatremia - Differential Diagnosis Algorithm
Syndrome of Inappropriate ADH - Euvolemic; no physiologic stimulus to
Causes of Hyponatremia ... Diagnosis Algorithm Syndrome ... GI losses • Renal ... especially thiazide diuretics ... Reduced GFR, AKI/CRF
Hyponatremia (<135 mEq/L) is a common electrolyte abnormality caused by an excess of total body water
in renal failure ... release of anti-diuretic ... collecting duct in the kidneys ... in the renal tubules ... #hyponatremia #ADH
Hyponatremia - Diagnosis and Treatment
Hyponatremia is usually caused by the inability to excrete water normally.
majority of cases, ADH ... demyelination syndrome ... include vaptans (HF ... Diagnosis #Treatment #management ... #nephrology #sodium