Last updated: Monday, 13, December, 2010
Hypercalcaemia may need to be verified and common artefacts excluded, by collecting a fasting blood specimen without using a tourniquet (stasis-free); see Table 1. Artefactual results.
Calcium (total); albumin, calcium (corrected); calcium (ionised) if presence of true hypercalcaemia is doubtful.
Further assessment should include phosphate, electrolytes, creatinine, urea, ALP; FBC; ESR.
|See above, and Table 1. Artefactual results.|
|Parathyroid hormone (PTH) - serum.|
Review clinical findings, FBC, blood film.
See also Leucoerythroblastic anaemia.
Review clinical findings for evidence of primary tumour.
Parathyroid hormone related protein, if diagnosis uncertain or if indicated as a tumour marker for monitoring therapy.
Vitamin D toxicity
|Vitamin D ( 25-hydroxy ) if vitamin D2 or D3 taken; Vitamin D (1,25-dihydroxy) if calcitriol taken.|
Vitamin A toxicity
Familial hypocalciuric hypercalcaemia
|Calcium - urine.|
High bone turnover states, especially