17 results
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 ... Present (Uosm ≥100): Hypovolemia ... differential #diagnosis #table ... #sodium #nephrology
Modified Hyponatremia Algorithm
Hypertonic Hyponatremia: Hyperglycemia, Mannitol, Urologic irrigants
Hypotonic Hyponatremia: 
 • ADH ON (UOsm > 100):
Hypertonic Hyponatremia ... ON (UNa < 30): Hypovolemia ... Primary polydipsia, Low ... #diagnosis #sodium ... #nephrology
Hyponatremia Differential Diagnosis Algorithm - Utilizing Uric Acid 
ADH promotes Urea/uric acid excretion along with water
Sodium 4) Serum ... Uric Acid - Low ... High Uric Acid → renal ... #nephrology #sodium ... #low #uricacid
Volume Based Approach to Hyponatremia
Hypovolemic, Serum uric acid >4
 • Urine Na <20: Extra-renal losses
 •
Na <20: Extra-renal ... Hypothyroidism, Low ... #Hyponatremia #algorithm ... #diagnosis #sodium ... #low #nephrology
Hyponatremia - Differential Algorithm
Isotonic Hyponatremia: Hyperlipidemia, Hyperproteinemia, Recent TURP
Hypotonic Hyponatremia: 
 • Hypovolemia: Diuretics/Nephropathies, Vomiting, Diarrhea,
- Differential Algorithm ... Hyponatremia: • Hypovolemia ... Syndrome, Chronic Renal ... diagnosis #causes #nephrology ... #sodium #low
Causes of Hypernatremia - Differential Diagnosis Algorithm
Hypernatremia - Excess free water loss, Serum Sodium >145 mmol/L
High
water loss, Serum Sodium ... 300 mmol/kg • Hypertonic ... mannitol, glucosuria Low ... Urine Osmolality ... Hypernatremia #Nephrology
Hypokalemia Evaluation Algorithm

Before evaluating hypokalemia, life threatening complications such as arrhythmias and paralysis should be looked
Algorithm Before ... A urine K/Cr ratio ... suggests extra-renal ... differential #potassium #nephrology ... #low
Potassium Binders for Management of Hyperkalemia
 • SPS - Sodium polystyrene sulfonate
 • Patiromer (veltassa)
 •
Management of Hyperkalemia ... • SPS - Sodium ... #treatment #pharmacology ... #table #comparison ... #nephrology
Hypernatremia - Differential Diagnosis Workup Algorithm

1) Check Urine Osmolality:
 > 600 mOsm/kg - Implies extrarenal mechanism
Diagnosis Workup Algorithm ... 1) Check Urine ... mOsm/kg - Implies renal ... • Euvolemic (Low ... #nephrology #sodium
Hyperkalemia - Diagnosis and Management - GrepMed Handbook

S/Sx: Most pts asymptomatic. Weakness, cramping, nausea, paresthesias, palpitations,
lysis) ± Urine ... Elimination (see Table ... acidosis) • Low ... Use gtt, NOT hypertonic ... #potassium #nephrology