Table 1.
Laboratory parameters before and after tumour removala
| Time (hour:minute) | Phosphate (mmol/L) | Calcium (mmol/L) | BiPTH (pg/mL) | FGF23 (pg/mL) | 1,25-vitD (pg/mL) | 24,25-vitD (ng/mL) | FE-Pi % | FE-Ca % |
| Normal range: | 0.80–1.50 | 2.15–2.50 | 5.5–30.9 | 10–50 | 20–80 | 5–15 | 1–2 | |
| 0 | 0.87 | 2.32 | 46.4 | 71.3 | 88.5 | 5.6 | 32 | 0.59 |
| 0:35 | ND | ND | 27.3 | 38.9 | 74.8 | 4.3 | ||
| 1:45 | 0.72 | 2.30 | 30 | 34.8 | 80.8 | 5.2 | ||
| 3:05 | 0.79 | 2.29 | ND | 31.7 | 76.2 | 5.2 | ||
| 4:05 | ND | ND | ND | 31 | 74.6 | 5 | ||
| 5:20 | ND | ND | 35.5 | 29 | 90.2 | 6.2 | ||
| 6:15 | 0.75 | 2.21 | ND | 28 | 75.2 | 5.2 | ||
| 10:15 | ND | ND | 40.9 | 28 | 95.2 | 4.5 | ||
| 14:20 | 0.79 | 2.37 | ND | 28 | 122.2 | 5.5 | ||
| 18:20 | ND | ND | ND | 28 | 134 | 5 | ||
| 22:20 | 0.81 | 2.37 | ND | 29 | 162.3 | 3.9 | ||
| 48 | 0.80 | ND | 56.4 | ND | ND | ND | 16 | 0.69 |
| 1 week | 1.36 | 2.37 | 21.8 | 28 | 267 | 3.1 | ||
| 2 weeks | 1.36 | 2.34 | 38.2 | 28 | 211.4 | 2.8 | ||
| 6 months | 1.34 | 2.48 | 10.9 | 27 | 159.1 | 5.5 |
a
BiPTH, bioactive 1-84 parathyroid hormone; ND, not determined; 1,25 vit D, 1,25-dihydroxyvitamin D; 24,25-vitD, 24,25-dihydroxyvitamin D; FE-Pi and FE-Ca are fractional excretion of phosphate and calcium, respectively, and are calculated as [serum mineral × urine creatinine (mmol/L)/serum creatinine × urine mineral (mmol/L)]. To convert phosphate to mg/dL multiply with 3.1; calcium to mg/dL multiply with 4; BiPTH to pmol/L multiply with 0.9; 1,25 vit to pmol/L multiply with 2.496; 24,25 vit D to nmol/L multiply with 2.496.