Clinics and Departments

Laboratory Services

Lab Dept:

Chemistry

Test Name:

IGF-1 (SOMATOMEDIN C)

General Information

Lab Order Codes:

SOMC

Synonyms:

Somatomedin C, Insulin-like Growth Factor-1, IGF-1; IGF1

CPT Codes:

84305 - Somatomedin

Test Includes:

N/A

Logistics

Test Indications:

N/A

Lab Testing Sections:

Chemistry - Sendouts

Referred to:

Esoterix, Inc (ESL Test: 500282B)

Phone Numbers:

MIN Lab: 612-813-6280

STP Lab: 651-220-6550

Test Availability:

Daily, 24 hours

Turnaround Time:

2 – 3 days, test set up Monday - Saturday

Special Instructions:

N/A

Specimen

Specimen Type:

Blood

Container:

Red top (plain, no gel) tube

Draw Volume:

3 mL (Minimum: 0.5 mL) blood

Processed Volume:

1 mL (Minimum: 0.1 mL) serum

Note:
Submission of minimum volume does not allow repeat analysis

Collection:

Routine venipuncture

Special Processing:

Lab Staff: Centrifuge specimen within 1 hour of draw, remove serum aliquot into a screw-capped round bottom plastic vial. Store and ship at frozen temperatures. Forward promptly.

Patient Preparation:

None

Sample Rejection:

Mislabeled or unlabeled specimens

Interpretive

Reference Range:

Newborns and Infants

Term (Range ng/mL)

Pre-Term * (Range ng/mL)

Birth:

15 - 109

21 - 93

2 months:

15 - 109

23 - 163

4 months:

7 - 124

23 - 171

6 months:

7 - 93

15 - 132

12 months:

15 - 101

15 - 179

* Values from preterm infants were determined at these ages from expected term gestation.

Children and Young Adults

Male (ng/mL)

Female (ng/mL)

1 – 2 years:

30 - 122

56 - 144

3 – 4 years:

54 - 178

74 - 202

5 – 6 years:

60 - 228

82 - 262

7 – 8 years:

113 - 261

112 - 276

9 – 10 years:

123 - 275

140 - 308

11 – 12 years:

139 - 395

132 - 376

13 – 14 years:

152 - 540

192 - 640

15 – 16 years:

257 - 601

217 - 589

17 – 18 years:

236 - 524

176 - 452

19 – 20 years:

281 - 510

217 - 475

Adults

Male (ng/mL)

Female (ng/mL)

21 – 30 years

155 - 432

87 - 368

Critical Values:

N/A

Limitations:

N/A

Methodology:

Blocking Radioimmunoassay (RIA) after acid:alcohol extraction

References:

Esoterix Laboratory Services Web Page www.esoterix.com



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