IGF-1 (Blood)

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Testing Laboratory

Auckland Te Toka Tumai | Auckland Hospital

Department

Chemical Pathology

Delphic Registration Code (Alpha Code)

IGF1

Test Code (Numeric Code)

3630

Laboratory Handling

Laboratory

LabPLUS Endocrinology

Sample Stability

Whole blood: 3 hours at room temperature. Serum: 24 hours at 4 degrees Celsius. 12 months frozen

Synonyms

Insulin - like Growth Factor 1, Insulin-like growth factor 1, insulin like growth factor 1, IGF1, Somatomedin

Turnaround Time

1 week

Performed once a week

This test may be vetted by the laboratory. Please include relevant clinical information on the request form to ensure appropriate tests are approved. See the 'Clinical Information' section below for more information on the indications for testing.

Specimen Type

  • Serum

Specimen Requirements

Tube/Container Type:

Preferred
  • Plain (Red Top)
  • SST II (Gold Cap)
Acceptable
  • Plain (Red Top)
  • SST II (Gold Cap)
Preferred Sample Volume (ml)

4

Paediatric Specimen Requirements

Tube/Container Type:

Preferred
  • Plain(Microtainer)
  • SST(Microtainer)
Preferred Sample Volume (ml)

1

Pre-testing Requirements

Requests for IGF-1 tests may be vetted. Criteria for approval of IGF-1 tests:

Tests requested by endocrinologists or paediatricians will be approved
Approved for investigation or monitoring of short stature, hypopituitarism or acromegaly - please state this clearly on the request form
NOT approved for "wellness testing" or chronic fatigue.

Last updated: 31/08/2026