INSULIN-LIKE GROWTH FACTOR I (IGF-1)
Marquette General Health System

General Info

Alpha Code

  ILGF1

MGH LIS Test No

  4674

Schedule

  Monday, Wednesday, Friday

Testing Time

  3 Days

Testing Lab

  Warde Medical Laboratories

QORR Test Code

  ILGF1

Specimen Info

Type

  1 Red Top (Plain) OR SST  

Volume

  2.0 mL

Temperature

  Frozen

Preservative

   

Collection Info

  One Red Top OR SST /2.0 mL serum (0.5 mL minimum) and allow to clot. Centrifuge 
the sample preferably in a refrigerated centrifuge, collect the serum and store 
immediately at -20°C. Freeze at -20°C within one hour of collection.
 
Specimen Acceptability

Methods
Chemiluminescence

Clinical Utilities

CPT Codes
84305

Reference Range
Reference Values:
Age (YR)                  Male/Female (ng/mL)
1- 2                                  55-237
2- 3                                  51-303
3- 4                                  49-289
4- 5                                  49-283
5- 6                                  50- 286
6- 7                                  52-297
7- 8                                  57-316
8- 9                                  64-345
9- 10                                74-388
10- 11                               88-452
11- 12                              111-551     
12- 13                              143-693
13- 14                              183-850  
14- 15                              220-972 
15- 16                              237-996
16- 17                              226-903  
17- 18                              193-731
18- 19                              163-584 
19- 20                              141-483    
20- 21                              127-424   
21- 26                              116-358   
26- 31                              117-329 
31- 36                              115-307
36- 41                              109-284    
41- 46                              101-267
46- 51                                94-252
51-56                                 87-238
56- 61                                91-225
61- 66                                75-212
66- 71                                69-200
71- 76                                64-188
76- 81                                59-177
81- 150                              55-166

Children:                                                IGF-1

Tanner Stages           Females (ng/mL)                    Males (ng/mL)

I                                        49-342                                    63-279
II                                     115-428                                    75-420  
III                                    145-760                                    95-765 
IV                                    244-787                                  192-861 
V                                     143-859                                  171-814 
                                                                   

Component Information

Collection Notes

Additional Comments

 

Questions or Comments email support@mgh.org

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