9 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 ... can be high or low ... #differential #diagnosis ... #nephrology
Hypernatremia - Differential Diagnosis Workup Algorithm

1) Check Urine Osmolality:
 > 600 mOsm/kg - Implies extrarenal mechanism
- Differential Diagnosis ... Workup Algorithm ... • Euvolemic (Low ... #Workup #Algorithm ... #nephrology #sodium
Simplified Approach to Acute Kidney Injury (AKI)
1) IS THIS AN EMERGENCY? 
Is there a dialysis indication
require urgent nephrology ... : Hypovolemia, Low ... you confirmed diagnosis ... KidneyInjury #simplified #workup ... #diagnosis #nephrology
Polyuria - Differential Diagnosis Algorithm
Polyuria = >3L Urine output / 24 hours
Urine osmolality = 2 (Na
Algorithm Polyuria ... 2 (Na meq/L + K ... solute intake (e.g ... nutrition), Azotemia LOW ... #Algorithm #nephrology
Causes of Hypernatremia - Differential Diagnosis Algorithm
Hypernatremia - Excess free water loss, Serum Sodium >145 mmol/L
High
- Differential Diagnosis ... water loss, Serum Sodium ... Polyuria scheme) e.g ... mannitol, glucosuria Low ... Hypernatremia #Nephrology
Hypophosphatemia - Differential Diagnosis Algorithm
Appropriately Low Kidney Phosphate Excretion:
 • Decreased GI Absorption: Chronic Diarrhea, Antacids,
- Differential Diagnosis ... Low Kidney Phosphate ... Hyperparathyroidism, TKI ... #Algorithm #nephrology ... #phosphorus #workup
Causes of Hyperkalemia - Reduced Excretion - Differential Diagnosis Algorithm

Reduced flow through distal nephron - TTKG
- Differential Diagnosis ... Algorithm Reduced ... EABV (e.g., CHF ... renal failure • AKI ... IntercellularShift #Nephrology
Hyperkalemia - Diagnosis and Management - GrepMed Handbook

S/Sx: Most pts asymptomatic. Weakness, cramping, nausea, paresthesias, palpitations,
, RTA Type IV, AI ... reabsorption) Workup ... heparinized tube) • ECG ... acidosis) • Low ... Treatment #potassium #nephrology
Causes of Hyperkalemia - Intercellular Shift - Differential Diagnosis Algorithm
Transcellular Shift - Appropriate renal excretion (GFR,
- Differential Diagnosis ... , TTKG, distal flow ... • Cell Lysis (e.g ... Decreased Na+-K+ ... IntercellularShift #Nephrology