LAB526
Collect
Serum separator tube.
Specimen Preparation
Transport 1 mL serum. (Min: 0.5 mL)
Unacceptable Conditions
Plasma, tissue, or urine. Grossly hemolyzed or lipemic specimens.
Storage/Transport Temperature
Frozen.
Stability (from collection to initiation)
After separation from cells: Ambient: 24 hours; Refrigerated: 1 week; Frozen: 1 year
Performed
Sun-Sat
Methodology
Quantitative Chemiluminescent Immunoassay
Reported
1-2 days
Synonyms
- Somatomedin C
- Insulin-Like Growth Factor I
- LAB526
- INSLIKEGF1
Additional Technical Information
Ordering Recommendations
Aids in diagnosis of growth hormone excess or deficiency disorders.
Reference Interval
Age | Female | Male |
---|---|---|
1-2 years 3 years 4 years 5 years 6 years 7 years 8-18 years 19-20 years 21-30 years 31-40 years 41-50 years 51-60 years 61-70 years 71-80 years | 56-144 ng/mL 26-162 ng/mL 32-179 ng/mL 39-198 ng/mL 55-238 ng/mL 55-268 ng/mL Refer to Tanner Stages 217-475 ng/mL 87-368 ng/mL 106-368 ng/mL 118-298 ng/mL 53-287 ng/mL 75-263 ng/mL 54-205 ng/mL | 30-122 ng/mL 20-141 ng/mL 25-157 ng/mL 30-174 ng/mL 37-192 ng/mL 44-211 ng/mL Refer to Tanner Stages 281-510 ng/mL 155-432 ng/mL 132-333 ng/mL 121-237 ng/mL 68-245 ng/mL 60-220 ng/mL 36-215 ng/mL |
Female Tanner Stages | |
I (8-12 yrs) | 64-358 ng/mL |
II (8-14 yrs) | 89-566 ng/mL |
III (9-15 yrs) | 192-568 ng/mL |
IV & V (11-18 yrs) | 147-646 ng/mL |
Male Tanner Stages | |
I (8-15 yrs) | 52-391 ng/mL |
II & III (8-16 yrs) | 39-648 ng/mL |
IV & V (11-18 yrs) | 144-673 ng/mL |
Interpretive Data
IGF-1 values well above the age and gender matched reference interval indicate a possible pituitary tumor secreting growth hormone. IGF-1 values below the reference interval indicate a possible GH deficiency.
CPT Codes
84305
Collection |
LAB526
Collect
Serum separator tube.
Specimen Preparation
Transport 1 mL serum. (Min: 0.5 mL)
Unacceptable Conditions
Plasma, tissue, or urine. Grossly hemolyzed or lipemic specimens.
Storage/Transport Temperature
Frozen.
Stability (from collection to initiation)
After separation from cells: Ambient: 24 hours; Refrigerated: 1 week; Frozen: 1 year
Ordering |
Performed
Sun-Sat
Methodology
Quantitative Chemiluminescent Immunoassay
Reported
1-2 days
Synonyms
- Somatomedin C
- Insulin-Like Growth Factor I
- LAB526
- INSLIKEGF1
Additional Technical Information
Ordering Recommendations
Aids in diagnosis of growth hormone excess or deficiency disorders.
Result Interpretation |
Reference Interval
Age | Female | Male |
---|---|---|
1-2 years 3 years 4 years 5 years 6 years 7 years 8-18 years 19-20 years 21-30 years 31-40 years 41-50 years 51-60 years 61-70 years 71-80 years | 56-144 ng/mL 26-162 ng/mL 32-179 ng/mL 39-198 ng/mL 55-238 ng/mL 55-268 ng/mL Refer to Tanner Stages 217-475 ng/mL 87-368 ng/mL 106-368 ng/mL 118-298 ng/mL 53-287 ng/mL 75-263 ng/mL 54-205 ng/mL | 30-122 ng/mL 20-141 ng/mL 25-157 ng/mL 30-174 ng/mL 37-192 ng/mL 44-211 ng/mL Refer to Tanner Stages 281-510 ng/mL 155-432 ng/mL 132-333 ng/mL 121-237 ng/mL 68-245 ng/mL 60-220 ng/mL 36-215 ng/mL |
Female Tanner Stages | |
I (8-12 yrs) | 64-358 ng/mL |
II (8-14 yrs) | 89-566 ng/mL |
III (9-15 yrs) | 192-568 ng/mL |
IV & V (11-18 yrs) | 147-646 ng/mL |
Male Tanner Stages | |
I (8-15 yrs) | 52-391 ng/mL |
II & III (8-16 yrs) | 39-648 ng/mL |
IV & V (11-18 yrs) | 144-673 ng/mL |
Interpretive Data
IGF-1 values well above the age and gender matched reference interval indicate a possible pituitary tumor secreting growth hormone. IGF-1 values below the reference interval indicate a possible GH deficiency.
Administrative |
CPT Codes
84305