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Lab Dept:
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Chemistry
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Test Name:
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IGF-1 (SOMATOMEDIN C)
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General Information
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Lab Order Codes:
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SOMC
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Synonyms:
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Somatomedin C, Insulin-like Growth Factor-1, IGF-1; IGF1
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CPT Codes:
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84305 - Somatomedin
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Test Includes:
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N/A
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Logistics
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Test Indications:
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N/A
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Lab Testing Sections:
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Chemistry - Sendouts
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Referred to:
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Esoterix, Inc (Test# 500282B)
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Phone Numbers:
Minneapolis:
Saint Paul:
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612-813-6280
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651-220-6550
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Test Availability:
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Daily, 24 hours
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Turnaround Time:
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2 – 3 days, test set up Monday - Saturday
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Special Instructions:
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N/A
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Specimen
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Specimen Type:
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Whole blood
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Container:
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Red top (plain, no gel) tube
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Draw Volume:
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3 mL (Minimum: 0.5 mL) blood
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Processed Volume:
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1 mL (Minimum: 0.1 mL) serum
Note: Submission of minimum volume does not allow repeat analysis
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Collection:
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Routine venipuncture
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Special Processing:
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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.
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Patient Preparation:
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None
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Sample Rejection:
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Mislabeled or unlabeled specimens
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Interpretive
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eference Range:
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Newborns and Infants
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Term (Range ng/mL)
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Pre-Term * (Range ng/mL)
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Birth:
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15 - 109
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21 - 93
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2 months:
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15 - 109
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23 - 163
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4 months:
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7 - 124
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23 - 171
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6 months:
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7 - 93
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15 - 132
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12 months:
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15 - 101
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15 - 179
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* Values from preterm infants were determined at these ages from expected term gestation.
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Children and Young Adults
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Male (ng/mL)
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Female (ng/mL)
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1 – 2 years:
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30 - 122
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56 - 144
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3 – 4 years:
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54 - 178
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74 - 202
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5 – 6 years:
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60 - 228
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82 - 262
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7 – 8 years:
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113 - 261
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112 - 276
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9 – 10 years:
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123 - 275
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140 - 308
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11 – 12 years:
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139 - 395
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132 - 376
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13 – 14 years:
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152 - 540
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192 - 640
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15 – 16 years:
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257 - 601
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217 - 589
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17 – 18 years:
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236 - 524
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176 - 452
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19 – 20 years:
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281 - 510
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217 - 475
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Adults
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Male (ng/mL)
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Female (ng/mL)
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21 – 30 years
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155 - 432
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87 - 368
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Critical Values:
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N/A
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Limitations:
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N/A
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Methodology:
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Blocking Radioimmunoassay (RIA) after acid:alcohol extraction
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References:
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Esoterix Laboratory Services Web Page www.esoterix.com
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