Insulin Like Growth Factor 1 (IGF1) by Immunoassay


Sunquest Code:IGF  
Epic Code:LAB6297Epic Name:INS Growth Factor 1
Synonyms:Somatomedin-C; Sulfation Factor; IGF-1; IGF1
Methodology:Chemiluminescent immunoassay
CPT Code:84305
Turnaround Time:Performed Tuesdays and Fridays, results are reported the same day.


Collection Instructions

Specimen:Blood
Optimal Volume:2.0 mL
Minimum\Peds Volume:0.6 mL
Container:Red or gold (gel) (Red (no gel))
Causes for Rejection:Gross hemolysis or lipemia. Clotted sample. Samples not separated from cells within 2 hours of collection.
Contraindications:Gross hemolysis or lipemia. Clotted sample.


Processing and Shipping

Specimen Processing:Within 2 hours of collection, centrifuge and aliquot 1.0 mL, 0.2 mL minimum. Store in freezer.
Shipping Instructions:Ship on dry ice.
Test Performed at or Referral Lab Specialty Core  (UMMC-East Bank)


Interpretive

Reference Range:
Tanner Stage Males Females
Stage I 81-255 ng/mL 86-323 ng/mL
Stage II 106-432 ng/mL 118-451 ng/mL
Stage III 245-511 ng/mL 258-529 ng/mL
Stage IV 223-578 ng/mL 224-586 ng/mL
Stage V 227-518 ng/mL 188-512 ng/mL
Tanner Stage reference source: Bindlingmaier M, et al: J Clin Endocrinol Metab 2014 2014 May;99(5):1712-1721
 
Age Female
ng/mL
Male
ng/mL
0 8-131 11-100
1 9-146 12-120
2 11-165 13-143
3 13-187 14-169
4 15-216 15-200
5 19-251 16-233
6 24-293 17-269
7 30-342 18-307
8 39-396 20-347
9 49-451 23-386
10 62-504 29-242
11 76-549 37-459
12 90-581 49-487
13 104-596 64-508
14 115-591 83-519
15 121-564 102-520
16 122-524 119-511
17 120-479 131-511
18 117-436 137-461
19 113-399 137-428
20 109-372 133-395
21 107-351 127-364
22 105-337 120-338
23 103-326 112-316
24 102-317 105-298
25 100-311 99-283
26 98-305 94-271
27 96-301 90-262
28 93-297 87-255
29 91-293 84-250
30 89-290 83-246
31 87-286 82-244
32 85-283 82-243
33 83-280 82-242
34 82-279 82-242
35 81-278 83-241
36 80-277 83-240
37 80-277 83-239
38 79-276 83-238
39 78-274 83-238
40 76-271 80-237
41 75-267 81-236
42 73-263 80-235
43 71-258 78-233
44 69-253 76-230
45 66-249 74-227
46 64-246 72-225
47 62-243 71-224
48 60-240 69-224
49 59-238 68-225
50 57-236 67-225
51 55-235 66-225
52 53-234 65-222
53 52-233 64-218
54 51-233 62-214
55 49-234 61-210
56 48-235 59-206
57 47-236 58-204
58 46-238 56-203
59 44-240 55-203
60 43-241 53-206
61 41-243 51-209
62 40-244 49-214
63 38-244 46-219
64 36-244 43-225
65 34-241 40-231
66 32-238 37-236
67 30-235 34-240
68 28-231 31-243
69 27-228 29-245
70 26-226 27-246
71 24-224 26-245
72 24-222 25-242
73 23-221 24-236
74 22-220 23-229
75 21-218 22-221
76 20-216 22-212
77 20-214 21-204
78 19-210 20-196
79 18-206 19-189
80 18-200 18-184
81 18-193 17-180
82 17-186 16-177
83 17-179 16-176
84 17-173 16-176
>85 17-167 15-177
 
Use:Aids in the evaluation of growth disorders.


Click HERE to Report test errors or omissions.
*If no email program is associated with this computer, please contact:
systemlabguide@fairview.org for TestID: 2990"