Test ID: PTH2P
Parathyroid Hormone (PTH), with Minerals, Serum

PTH

15-65 pg/mL

Reference values apply to all ages.

CALCIUM

Males

0-11 months: not established*

1-14 years: 9.6-10.6 mg/dL

15-16 years: 9.5-10.5 mg/dL

17-18 years: 9.5-10.4 mg/dL

19-21 years: 9.3-10.3 mg/dL

> or =22 years: 8.9-10.1 mg/dL

Females

0-11 months: not established*

1-11 years: 9.6-10.6 mg/dL

12-14 years: 9.5-10.4 mg/dL

15-18 years: 9.1-10.3 mg/dL

> or =19 years: 8.9-10.1 mg/dL

PHOSPHORUS

Males

0-11 months: not established**

1-4 years: 4.3-5.4 mg/dL

5-13 years: 3.7-5.4 mg/dL

14-15 years: 3.5-5.3 mg/dL

16-17 years: 3.1-4.7 mg/dL

> or =18 years: 2.5-4.5 mg/dL

Females

0-11 months: not established**

1-7 years: 4.3-5.4 mg/dL

8-13 years: 4.0-5.2 mg/dL

14-15 years: 3.5-4.9 mg/dL

16-17 years: 3.1-4.7 mg/dL

> or =18 years: 2.5-4.5 mg/dL

CREATININE

Males

0-11 months: not established

1-2 years: 0.1-0.4 mg/dL

3-4 years: 0.1-0.5 mg/dL

5-9 years: 0.2-0.6 mg/dL

10-11 years: 0.3-0.7 mg/dL

12-13 years: 0.4-0.8 mg/dL

14-15 years: 0.5-0.9 mg/dL

> or =16 years: 0.8-1.3 mg/dL

Females

0-11 months: not established

1-3 years: 0.1-0.4 mg/dL

4-5 years: 0.2-0.5 mg/dL

6-8 years: 0.3-0.6 mg/dL

9-15 years: 0.4-0.7 mg/dL

> or =16 years: 0.6-1.1 mg/dL

*The serum concentration of calcium varies significantly during the immediate neonatal period. In general, the serum calcium concentration decreases over the first days of life, followed by a gradual increase to adult concentrations by the second or third week of life.

**The plasma concentrations of inorganic phosphate in the neonatal period can be greater than those of the adult.