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HelpTest Code FIGF1 IGF-1, LC/MS
Additional Codes
| Epic Ordering Code | LAB3053475 |
| NBS code | LBC13225 |
| Service code | 37191 |
Reporting Name
IGF-1, LC/MSSpecimen Type
SerumSpecimen Required
Collection Container/Tube:
Preferred: Red top
Acceptable: Serum gel
Submission Container/Tube: Plastic vial
Specimen Volume: 0.5 mL Serum
Collections Instructions:
1. Centrifuge and aliquot 0.5 mL of serum into a plastic vial.
2. Send refrigerate.
NUH Outreach Laboratories:
Specimen Requirements
Submit only one of the following:
Preferred: Red Top
Acceptable: Yellow Top
Processing Requirements
Centrifuge and aliquot serum into a Mayo plastic tube.
Specimen type: Serum
Volume: 0.5 mL
Storage/transport requirements: Frozen
Specimen Minimum Volume
Serum: 0.3 mL
Specimen Stability Information
| Specimen Type | Temperature | Time |
|---|---|---|
| Serum | Refrigerated (preferred) | 7 days |
| Frozen | 60 days |
Reject Due To
| Hemolysis | Reject |
Method Name
Liquid Chromatography Mass Spectrometry (LC/MS)
Day(s) Performed
Monday through Sunday
Report Available
3 to 8 daysPlease note that this is a referral test requiring transport to the external testing facility and an additional 3-5 days is required.
Reference Values
|
Pediatric |
Male (ng/mL) |
Female (ng/mL) |
|
<1 year |
14-142 |
17-185 |
|
1-1.9 years |
12-134 |
15-175 |
|
2-2.9 years |
12-135 |
16-179 |
|
3-3.9 years |
30-155 |
38-214 |
|
4-4.9 years |
28-181 |
34-238 |
|
5-5.9 years |
31-214 |
37-272 |
|
6-6.9 years |
38-253 |
45-316 |
|
7-7.9 years |
48-298 |
58-367 |
|
8-8.9 years |
62-347 |
76-424 |
|
9-9.9 years |
80-398 |
99-483 |
|
10-10.9 years |
100-449 |
125-541 |
|
11-11.9 years |
123-497 |
152-593 |
|
12-12.9 years |
146-541 |
178-636 |
|
13-13.9 years |
168-576 |
200-664 |
|
14-14.9 years |
187-599 |
214-673 |
|
15-15.9 years |
201-609 |
218-659 |
|
16-16.9 years |
209-602 |
208-619 |
|
17-17.9 years |
207-576 |
185-551 |
|
Adult |
(ng/mL) |
|
18-19.9 years |
108-548 |
|
20-24.9 years |
83-456 |
|
25-29.9 years |
63-373 |
|
30-39.9 years |
53-331 |
|
40-49.9 years |
52-328 |
|
50-59.9 years |
50-317 |
|
60-69.9 years |
41-279 |
|
70-79.9 years |
34-245 |
|
>80 years |
34-246 |
Z-Score (Male and Female): -2.0 to +2.0 SD
Pediatric Tanner Stages: See Laboratory Report
Performing Laboratory
Quest Diagnostics Nichols InstituteCPT Code Information
84305
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| FIGF1 | IGF-1, LC/MS | Not Provided |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| Z6379 | IGF-1, LCMS | 2484-4 |
| Z6380 | Z-Score (Female) | 73561-3 |
| Z6381 | Z-Score (Male) | 73561-3 |
Secondary ID
75932Test Classification
This test was developed and its analytical performance characteristics have been determined by Quest Diagnostics. It has not been cleared or approved by FDA. The assay has been validated pursuant to the CLIA regulations and is used for clinical purposes.Last updated 03/08/2026