Management of Hyponatremia in CKD with Uremia

Initial Assessment and Management

• The American College of Physicians and Kidney Disease: Improving Global Outcomes (KDIGO) recommend individualized dietary modifications, including protein restriction to 0.8 g/kg/day for CKD G4-G5, to manage severe uremia 1, 2
• The National Kidney Foundation suggests continuing RAS inhibitors (ACEi/ARB) unless contraindicated by symptomatic hypotension, uncontrolled hyperkalemia, or creatinine rise >30% 1, 3

Management of Hyperuricemia

• The Kidney Disease: Improving Global Outcomes (KDIGO) guideline recommends not initiating uric acid-lowering therapy for asymptomatic hyperuricemia, as it does not delay CKD progression 4, 5
• For symptomatic gout, the European Renal Association - European Dialysis and Transplant Association (ERA-EDTA) suggests prescribing xanthine oxidase inhibitors (allopurinol starting at ≤50 mg/day in stage 3-4 CKD) in preference to uricosuric agents 4, 6

Critical Monitoring Parameters

• The Annals of Internal Medicine recommends monitoring serum potassium within 2-4 weeks if adjusting RAS inhibitors or diuretics 3
• The Praxis Medical Insights guideline suggests monitoring serum creatinine to detect acute-on-chronic kidney injury 1

Common Pitfalls to Avoid

• The Kidney International journal advises against using NSAIDs for pain management, as they worsen kidney function and increase hyperkalemia risk 1, 4
• The American Journal of Kidney Diseases recommends avoiding overly aggressive sodium correction (>8 mEq/L in 24 hours), which risks osmotic demyelination syndrome 1, 3

When to Consider Dialysis

• The Praxis Medical Insights guideline suggests preparing for renal replacement therapy if GFR approaches <15 mL/min with refractory uremic symptoms 1