Additional Information:
EPIC Test Name: INSULIN-LIKE GROWTH FACTOR-1
0 decimal points (e.g., 97 ng/mL)
CPT Code(s):
84305
Collection Procedure:
Collect specimen in SST tube. Allow to clot. Centrifuge and store refrigerated. Transport to lab.
Specimen Requirements:
Specimen Type: Serum (preferred) or Plasma
Container/Tube: SST or Lithium Heparin (Green top)
Sample Volume: 1 mL
Minimum Volume: 0.2 mL (Repeat testing is not possible with this specimen volume.)
Storage: Refrigerate
Stability (collection to time of analysis/testing):
- Refrigerated: 24 hours
- Frozen: 12 months
Methodology:
Solid-phase enzyme-labeled chemiluminescent immunometric assay
Reported:
1-3 Business Days
Reference Values:
Normal Range Reference Intervals for IGF-1
Females
Age (Years) |
ng/mL |
Age (Years) |
ng/mL |
0 - 4 |
18.2 - 172 | 40 - 45 | 58.2 - 219 |
4 - 7 |
35.4 - 232 | 45 - 50 | 53.3 - 215 |
7 - 10 |
56.9 - 277 | 50 - 55 | 48.1 - 209 |
10 - 12 |
118 - 448 | 55 - 60 | 44.7 - 210 |
12 - 14 |
170 - 527 | 60 - 65 | 43 - 220 |
14 - 16 |
191 - 496 | 65 - 70 | 40.2 - 225 |
16 - 19 |
190 - 429 | 70 - 80 | 35.1 - 216 |
19 - 22 |
117 - 232 | 80 - 90 | 30.6 - 208 |
22 - 25 |
98.7 - 289 | ||
25 - 30 |
83.6 - 259 | ||
30 - 35 |
71.2 - 234 | ||
35 - 40 |
63.4 - 223 |
Males
Age (Years) | ng/mL | Age (Years) | ng/mL |
0 - 4 |
0 - 129 | 40 - 45 | 58.2 - 219 |
4 - 7 |
22 - 208 | 45 - 50 | 53.3 - 215 |
7 - 10 |
40.1 - 255 | 50 - 55 | 48.1 - 209 |
10 - 12 |
68.7 - 316 | 55 - 60 | 44.7 - 210 |
12 - 14 |
143 - 506 | 60 - 65 | 43 - 220 |
14 - 16 |
177 - 507 | 65 - 70 | 40.2 - 225 |
16 - 19 |
173 - 414 | 70 - 80 | 35.1 - 216 |
19 - 22 |
117 - 232 | 80 - 90 | 30.6 - 208 |
22 - 25 |
98.7 - 289 | ||
25 - 30 |
83.6 - 259 | ||
30 - 35 |
71.2 - 234 | ||
35 - 40 |
63.4 - 223 |
Tanner Stages (from Emlinger)
Tanner Stage | Females | Males |
I | 49- 342 ng/mL | 63- 279 ng/mL |
II | 115- 428 ng/mL | 75- 420 ng/mL |
III | 145- 760 ng/mL | 94 - 765 ng/mL |
Performed:
Monday-Friday