IGF-1, LC/MS

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IGF-1, LC/MS

Test Code: FIGF1SO

Overview
Ordering
Specimen
Performing
Clinical/Interpretive
Contacts
Coding

Synonyms/Keywords

IGF1, IGF 1, Insulin-Like Growth Factor, Insulin Like Growth Factor, Somatomedin-C

Specimen Requirements

Specimen Type		Preferred Container/Tube	Acceptable Container/Tube	Specimen Volume	Specimen Minimum Volume (allows for 1 repeat)	Pediatric Minimum Volume (no repeat)
Serum		Red Top	Serum Gel	0.5 mL	0.3 mL

Collection Processing Instructions

1. Draw blood in a plain red-top tube(s), serum gel tube(s) is acceptable.

2. Centrifuge and aliquot 0.5 mL of serum into a plastic vial.

3. Send refrigerated.

Acceptable Specimen Types

Specimen Stability Information

Specimen Type	Temperature	Time
Serum	Refrigerated (preferred)	7 days
Serum	Frozen	60 days

Rejection Criteria

Gross Hemolysis Gross Lipemia Gross Icterus Glass tube

Performing Laboratory Information

Performing Location	Day(s) Test Performed	Analytical Time	Methodology/Instrumentation
200 1st St. SW Rochester, MN 55905			Liquid Chromatography Mass Spectrometry (LC/MS)

Reference Lab

Mayo Clinic Laboratories

Test Information

This test was developed and its performance characteristics determined by Marshfield Labs. It has not been cleared or approved by the US Food and Drug Administration. This test is used for clinical purposes. It should not be regarded as investigational or for research.

Reference Range Information

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 - +2.0 SD

Pediatric Tanner Stages: See Laboratory Report

Outreach CPTs

CPT	Modifier (if needed)	Quantity	Description	Comments
84305		1

Classification

Synonyms/Keywords

IGF1, IGF 1, Insulin-Like Growth Factor, Insulin Like Growth Factor, Somatomedin-C

Ordering Applications

Ordering Application	Description

If the ordering application you are looking for is not listed, contact your local laboratory for assistance.

Specimen Requirements

Specimen Type		Preferred Container/Tube	Acceptable Container/Tube	Specimen Volume	Specimen Minimum Volume (allows for 1 repeat)	Pediatric Minimum Volume (no repeat)
Serum		Red Top	Serum Gel	0.5 mL	0.3 mL

Collection Processing

1. Draw blood in a plain red-top tube(s), serum gel tube(s) is acceptable.

2. Centrifuge and aliquot 0.5 mL of serum into a plastic vial.

3. Send refrigerated.

Acceptable Specimen Types

Specimen Stability Information

Specimen Type	Temperature	Time
Serum	Refrigerated (preferred)	7 days
Serum	Frozen	60 days

Rejection Criteria

Gross Hemolysis Gross Lipemia Gross Icterus Glass tube

Reference Range Information

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 - +2.0 SD

Pediatric Tanner Stages: See Laboratory Report

For more information visit:

http://labtestsonline.org

Performing Laboratory Information

Performing Location	Day(s) Test Performed	Analytical Time	Methodology/Instrumentation
200 1st St. SW Rochester, MN 55905			Liquid Chromatography Mass Spectrometry (LC/MS)

Reference Lab

Mayo Clinic Laboratories

For billing questions, see Contacts

Outreach CPTs

CPT	Modifier (if needed)	Quantity	Description	Comments
84305		1

Classification

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For most current information refer to the Marshfield Laboratory online reference manual.

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26724 IGF-1, LC/MS