Ordering Recommendation

May be used as an adjunct to IGF-1 in diagnosis of growth disorders.

Mnemonic
IGF-2
Methodology

Quantitative Enzyme-Linked Immunosorbent Assay

Performed

Tuesday

Reported

1-8 days

New York DOH Approval Status
This test is New York DOH approved.
Specimen Required
Patient Preparation
Collect

Plain Red or Serum Separator Tube (SST).

Specimen Preparation

Allow specimen to clot completely at room temperature. Separate from cells ASAP or within 2 hours of collection. Transfer 0.5 mL serum to an ARUP Standard Transport Tube (Min: 0.2 mL). Freeze Immediately.

Storage/Transport Temperature

CRITICAL FROZEN. Separate specimens must be submitted when multiple tests are ordered.

Unacceptable Conditions

Moderately or grossly hemolyzed or severely lipemic specimens

Remarks
Stability

Ambient: 24 hours; Refrigerated: 2 days; Frozen: 2 months (Avoid repeated freeze/thaw cycles)

Reference Interval
Prepubertal (0-11 years old) 127-473 ng/mL
Postpubertal (12 years and older) 180-580 ng/mL

Interpretive Data

Refer to report

Compliance Statement D: For laboratory tests using a manufactured RUO kit. This test was developed and its performance characteristics determined by ARUP Laboratories. The U. S. Food and Drug Administration has not approved or cleared this test; however, FDA clearance or approval is not currently required for clinical use. The results are not intended to be used as the sole means for clinical diagnosis or patient management decisions.

Note
Hotline History
N/A
CPT Codes

83520

Components
Component Test Code* Component Chart Name LOINC
2013600 Insulin-Like Growth Factor (IGF-2)
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.
Aliases
  • IGF-2 (Insulin-Like Growth Factor II)
Insulin-Like Growth Factor 2 (IGF-2)