Clinical Nutrition practice in chronic kidney diseases

As per KDIGO guidelines, serum phosphate, along with calcium, intact parathyroid hormone (iPTH), and 25-hydroxyvitamin D levels are estimated in all patients with an estimated glomerular filtration rate (eGFR) less than 60 mL/min/1.73 m^2.

If the estimated glomerular filtration rate (eGFR) is between 30 to 59 mL/min/1.73 m^2, serum phosphate, and calcium should be measured every 6 to 12 months. In patients with estimated eGFR 15 to 29 mL/min/1.73 m^2, serum phosphate and calcium require assessment every three to six months