CYP2C19 Genotyping (Blood)

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Testing Laboratory

Waitematā | Northshore Hospital

Department

Microbiology

Delphic Registration Code (Alpha Code)

CGXE

Test Code (Numeric Code)

4139

Laboratory Handling

Phlebotomy

Send EDTA (Purple) with a E suffix. EDTA sample can NOT be shared with other tests.

Registration

CYP2D6, CYP21A2 and CYP24A1 are done at Blueprint Genetics (Finland). Please code as MOLG and send to LabPlus Diagnostic Genetics, who will on-send the specimen to Blueprint Genetics.

Laboratory

Clopidogrel (CYP2C19) testing was established for use within Waitematā and was not intended to be offered as a regional referral service. Starting from the 16th of October 2026, Waitematā is unable to accept requests from outside its catchment area.

Sample Stability

7 days

Synonyms

CYP450 2D6/2C19 Genotype,
Clopidogrel gene test

Turnaround Time

1 week

Specimen Type

  • Whole Blood

Specimen Requirements

Tube/Container Type:

Preferred
  • EDTA (Lavender Cap)
Acceptable
  • Cross Match (Pink Cap)
Preferred Sample Volume (ml)

3.5

Paediatric Specimen Requirements

Tube/Container Type:

Preferred
  • EDTA (Lavender Cap)
Acceptable
  • Cross Match (Pink Cap)

Last updated: 20/10/2026