Skip to main content
. Author manuscript; available in PMC: 2019 Feb 1.
Published in final edited form as: Nat Rev Endocrinol. 2017 Sep 8;14(2):115–125. doi: 10.1038/nrendo.2017.104

Figure 1 |. Relationship between serum levels of calcium and PTH.

Figure 1 |

Depicted is the relationship between serum levels of calcium and PTH in patients with primary hyperparathyroidism (PHPT; red line) and normal individuals (blue line). PHPT results in a shift of the curve to the right. Increased levels of calcium are needed to suppress PTH levels in PHPT.