Parathyroid hormone-related protein (PTHrP) - plasma
Last updated: Sunday, 21, March, 2004
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5 mL blood in each of two special heparin/Trasylol tubes.
Contact laboratory as the specimen must be processed immediately.
| Reference Interval|
<5 pmol/L (method dependent).
To determine the cause of hypercalcaemia when malignancy is suspected but cannot be detected by other means.
Can be used as a tumour marker in some malignancies to monitor progress.
An elevated level in a patient with hypercalcaemia of unknown cause suggests malignancy, especially squamous carcinoma.
Rising levels indicate progression of the tumour.
|Reference||Deftos LJ. Endocrinol Metab Clin North Am 2002; 31(1): 141-158.|