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IGF-1

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CPT/HCPCS 84305
Order Code CH239
Turnaround Time 24-48 hours
Test Includes

IGF-1

Specimen Requirements
Specimen Source
Serum
Transport Container
(Specimen Container)

SST (Tiger Top)

Preferred Specimens
Serum
Collection Instructions
(Transport Temperature)
Transport Refrigerated (cold packs)
Specimen Stability
Temperature Period
Room temperature 4 days
Refrigerated 4 days
Frozen 30 days
Reject Criteria

Plasma specimen

Test Details
Methodology
Chemiluminescence Immunoassay (CLIA)
Clinical Significance
  • Diagnosing growth disorders
  • Diagnosing adult growth hormone deficiency
  • Monitoring of recombinant human growth hormone treatment
  • Insulin-like growth factor binding protein 3 can be used as a possible adjunct to insulin-like growth factor 1 and growth hormone in the diagnosis and follow-up of acromegaly and gigantism.
Reference Ranges
Age
(y)		 Male
(ng/mL)		 Female
(ng/mL)		 Age
(y)		 Male
(ng/mL)		 Female
(ng/mL)
0 – 1 11 – 100 8 – 131 43 78 – 233 71 – 258
1 12 – 120 9 – 146 44 76 – 230 69 – 253
2 13 – 143 11 – 165 45 74 – 227 66 – 249
3 14 – 169 13 – 187 46 72 – 225 64 – 246
4 15 – 200 15 – 216 47 71 – 224 62 – 243
5 16 – 233 19 – 251 48 69 – 224 60 – 240
6 17 – 269 24 – 293 49 68 – 225 59 – 238
7 18 – 307 30 – 342 50 67 – 225 57 – 236
8 20 – 347 39 – 396 51 66 – 225 55 – 235
9 23 – 386 49 – 451 52 65 – 222 53 – 234
10 29 – 424 62 – 504 53 64 – 218 52 – 233
11 37 – 459 76 – 549 54 62 – 214 51 – 233
12 49 – 487 90 – 581 55 61 – 210 49 – 234
13 64 – 508 104 – 596 56 59 – 206 48 – 235
14 83 – 519 115 – 591 57 58 – 204 47 – 236
15 102 – 520 121 – 564 58 56 – 203 46 – 238
16 119 – 511 122 – 524 59 55 – 203 44 – 240
17 131 – 490 120 – 497 60 53 – 206 43 – 241
18 137 – 461 117 – 436 61 51 – 209 41 – 243
19 137 – 428 113 – 399 62 49 – 214 40 – 244
20 133 – 395 109 – 372 63 46 – 219 38 – 244
21 127 – 364 107 – 351 64 43 – 225 36 – 244
22 120 – 338 105 – 337 65 40 – 231 34 – 241
23 112 – 316 103 – 326 66 37 – 236 32 – 238
24 105 – 298 102 – 317 67 34 – 240 30 – 235
25 99 – 283 100 – 311 68 31 – 243 28 – 231
26 94 – 271 98 – 305 69 29 – 245 27 – 228
27 90 – 262 96 – 301 70 27 – 246 26 – 226
28 87 – 255 93 – 297 71 26 – 245 24 – 224
29 84 – 250 91 – 293 72 25 – 242 24 – 222
30 83 – 246 89 – 290 73 24 – 236 23 – 221
31 82 – 244 87 – 286 74 23 – 229 22 – 220
32 82 – 243 85 – 283 75 22 – 221 21 – 218
33 82 – 242 83 – 280 76 22 – 212 20 – 216
34 82 – 242 82 – 279 77 21 – 204 20 – 214
35 83 – 241 81 – 278 78 20 – 196 19 – 210
36 83 – 240 80 – 277 79 19 – 189 18 – 206
37 83 – 239 80 – 277 80 18 – 184 18 – 200
38 83 – 238 79 – 276 81 17 – 180 18 – 193
39 83 – 238 78 – 274 82 16 – 177 17 – 186
40 82 – 237 76 – 271 83 16 – 176 17 – 179
41 81 – 236 75 – 267 84 16 – 176 17 – 173
42 80 – 235 73 – 263 85 15 – 177 17 – 167