Parathyroid hormone related peptide (PTH rP)
| Category | Biochemistry |
|---|---|
| Test background |
PTH rP is a fetal peptide closely related to PTH which maintains the fetus hypercalcaemic to the mother. It is occasionally produced by tumours and can be a cause of hypercalcaemia of malignancy. |
| Clinical Indications |
Unexplained hypercalcaemia, particularly in patients with known carcinomas. |
| Reference range | See report |
| Sample & container required | Special container required. A special tube is required from the testing laboratory. Please contact Clinical Biochemistry on ext 30348 to arrange. |
| Sample volume | 1 mL |
| Turnaround time | Up to 6 weeks |
| Notes | Not currently performed in house; this is a referred test. Patient must have had PTH measured before. |