Children's Mercy Hospitals and Clinics
Name
IGF-I

Synonyms
Somatomedin C

CMH Lab Section
Chemistry

Specimen Requirements
2 mL blood in a red top tube with or without gel

Availability
Routine

Turn Around Time
2-3 hours

Methodology
Chemiluminescent immunoassay

Ranges
Female
Tanner Stage Median Range
I 159 49-342
II 269 115-428
III 412 145-760
IV 504 244-787
V 408 143-859

Male
Tanner Stage Median Range
I 152 63-279
II 190 75-420
III 406 94-765
IV 577 192-861
V 422 171-814


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