Table 1.
CKD stage | GFR range (mL/min/1.73 m2) | Measure PTH | Measure calcium and phosphorus | Target PTH (pg/mL) |
---|---|---|---|---|
Progressive stage 3 | 30–59 | Baseline | 6–12 months | < the upper limit of normal for assay |
Stage 4 | 15–29 | 6–12 months | 3–6 months | < the upper limit of normal for assay |
Stage 5 | < 15 or dialysis | 3–6 months | 1–3 months | 2–9 x the normal limit of the assay |
CKD = chronic kidney disease; GFR = glomerular filtration rate; PTH = parathyroid hormone.