Test Details

Mnemonic

IGF1

Ordering Code

1004085

CPT-4 Code(s)

84305

Specimen Information

Collect

Serum separator tube (SST)

Specimen Preparation

Centrifuge, separate serum from cells and send 1.0 mL serum frozen immediately in a screw capped plastic vial. CRITICAL FROZEN.

Alternate Specimen

Serum: Red top
Plasma: Lavender EDTA, green lithium heparin, green sodium heparin

Minimum Volume

0.5 mL

Transport Temperature

Frozen

Rejection Criteria

Hemolyzed specimens, grossly lipemic specimens

Stability

Room temperature: Unacceptable
Refrigerated: Unacceptable
Frozen: 14 days

Methodology

Chemiluminescence
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Reference Range

Males:
AGE Reference Range (ng/mL)
0 - 11 months 15 - 150
1 year: 18 - 179
2 years: 22 - 204
3 years: 25 - 224
4 years: 28 - 241
5 years: 32 - 259
6 years: 36 - 281
7 years: 42 - 311
8 years: 49 - 351
9 years: 58 - 401
10 years: 70 - 458
11 years: 82 - 516
12 years: 93 - 567
13 years: 103 - 603
14 years: 111 - 620
15 years: 115 - 618
16 years: 115 - 598
17 years: 113 - 566
18 years: 109 - 527
19 years: 104 - 484
20 years: 98 - 443
21 - 25 years: 83 - 344
26 - 30 years: 75 - 275
31 - 35 years: 71 - 241
36 - 40 years: 69 - 226
41 - 45 years: 64 - 210
46 - 50 years: 59 - 201
51 - 55 years: 56 - 201
56 - 60 years: 51 - 194
61 - 65 years: 47 - 191
66 - 70 years: 46 - 195
71 - 75 years: 42 - 187
76 - 80 years: 39 - 184
80 - 85 years: 37 - 182
85 - 90 years: 35 - 182
Reference values have not been established for patients that are >90 years of age.

Females:
Age Reference range (ng/mL)
0 - 11 months: 18 - 146
1 year: 20 - 159
2 years: 23 - 177
3 years: 27 - 198
4 years: 32 - 223
5 years: 36 - 246
6 years: 41 - 269
7 years: 48 - 299
8 years: 56 - 339
9 years: 68 - 396
10 years: 83 - 465
11 years: 99 - 537
12 years: 115 - 598
13 years: 126 - 637
14 years: 133 - 647
15 years: 134 - 631
16 years: 130 - 595
17 years: 123 - 546
18 years: 114 - 493
19 years: 105 - 441
20 years: 97 - 398
21 - 25 years: 84 - 323
26 - 30 years: 77 - 271
31 - 35 years: 73 - 244
36 - 40 years: 68 - 225
41 - 45 years: 62 - 205
46 - 50 years: 56 - 194
51 - 55 years: 53 - 191
56 - 60 years: 45 - 173
61 - 65 years: 41 - 168
66 - 70 years: 39 - 168
71 - 75 years: 36 - 166
76 - 80 years: 35 - 168
80 - 85 years: 35 - 179
85 - 90 years: 33 - 179
Reference values have not been established for patients that are >90 years of age.
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Performing Laboratory

Warde Medical Laboratory
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