Table 2.

Laboratory parameters in nonuremic calciphylaxis

CharacteristicNo. of cases (%)
Serum calcium (mg/dl)
    normal (8.5 to 10.2)21 (58.0)
    mild elevation (10.3 to 12.0)7 (19.4)
    marked elevation (>12.0)6 (16.6)
    not reported2 (5.6)
Serum phosphorus (mg/dl)
    low (<2.2)3 (8.3)
    normal (2.2 to 4.5)25 (69.4)
    mild elevation (4.6 to 6.0)3 (8.3)
    marked elevation (>6)2 (5.6)
    not reported3 (8.3)
Calcium-phosphorus product
    <5026 (72.2)
    >507 (19.4)
    not reported3 (8.3)
Serum PTHa
    low4 (11.1)
    normal14 (38.9)
    high11 (30.5)
    not reported7 (19.4)
Serum creatinine (mg/dl)
    ≤1.214 (42.4)
    1.3 to 1.52 (6.1)
    1.6 to 2.55 (13.9)
    2.6 to 3.03 (8.3)
    not reported12 (33.3)
  • a Assay types and normal ranges of parathyroid hormone (PTH) assays varied in the included reports. We divided them as low, normal, and high on the basis of the interpretation of the values by the individual study authors.