9 results
True Hyponatremia Differential Algorithm

Instead (or in addition) of volume status examination, check urine sodium and serum
Differential Algorithm ... sodium low, uric ... acid high in hypovolemic ... - Urine sodium ... and uric acid low
Modified Hyponatremia Algorithm
Hypertonic Hyponatremia: Hyperglycemia, Mannitol, Urologic irrigants
Hypotonic Hyponatremia: 
 • ADH ON (UOsm > 100):
Algorithm Hypertonic ... > 100): - RAAS ... ON (UNa < 30): Hypovolemia ... Primary polydipsia, Low ... #sodium #nephrology
Physiologic Approach to Hypotonic Hyponatremia
The next time you have a case of hypotonic hyponatremia, give the
normal volume-based algorithm ... Urine Na+K / serum ... alone in SIADH RAAS ... can be high or low ... Present (Uosm ≥100): Hypovolemia
Cancer agents and Electrolyte Disorders
 • Hypocalcemia: Cisplatin from Low Mg, Cetuximab- due to low Mg
Axitinib,
Cancer agents and ... Disorders • Hypocalcemia ... Trastuzumab • Hyponatremia ... Trastuzumab • Hypokalemia ... #agents #chemotherapy
Volume Based Approach to Hyponatremia
Hypovolemic, Serum uric acid >4
 • Urine Na <20: Extra-renal losses
 •
Based Approach to Hyponatremia ... Hypovolemic, Serum ... Hypothyroidism, Low ... #algorithm #diagnosis ... #sodium #low #nephrology
Hypernatremia - Differential Diagnosis Workup Algorithm

1) Check Urine Osmolality:
 > 600 mOsm/kg - Implies extrarenal mechanism
Diagnosis Workup Algorithm ... 1) Check Urine ... : • Hypovolemic ... • Euvolemic (Low ... #nephrology #sodium
Hyponatremia (<135 mEq/L) is a common electrolyte abnormality caused by an excess of total body water
hypervolemic, hypovolemic ... stimulated in states of low ... activated in states of low ... Measured urine sodium ... #RAAS #Hypovolemia
Hyponatremia - Differential Algorithm
Isotonic Hyponatremia: Hyperlipidemia, Hyperproteinemia, Recent TURP
Hypotonic Hyponatremia: 
 • Hypovolemia: Diuretics/Nephropathies, Vomiting, Diarrhea,
Algorithm Isotonic ... : • Hypovolemia ... polydipsia • Hypervolemia ... causes #nephrology #sodium ... #low
Hyponatremia Differential Diagnosis Algorithm in Cancer
UOsm ≥ 100 mOsm/kg = Urine is inappropriately concentrated for hypotonic
Hyponatremia Differential ... Diagnosis Algorithm ... in Cancer UOsm ... 100 mOsm/kg = Urine ... appropriate • Hypovolemia