Flucytosine (Blood)

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Testing Laboratory

Auckland Te Toka Tumai | Auckland Hospital

Department

Chemical Pathology

Delphic Registration Code (Alpha Code)

FCP (Peak), FCT (Trough), FCR (Random)

Test Code (Numeric Code)

4078

Laboratory Handling

Transport

Within Auckand: Refridgerated (2-8°C) or ambient (8-24°C)
Outside Auckland: Must be refridgerated (2-8°C)

Registration

FCP (Peak) Numeric 4078
FCT (Trough) Numeric 3030
FCR (Random) Numeric 4079

Separating

Centrifuge and separate blood AS SOON AS POSSIBLE after collection

Laboratory

LabPLUS High Performance Liquid Chromatography

Sample Stability

Max 24°C during shipping; results unreliable if exceeded.

Synonyms

5-fluorocytosine, Flucytosine

Turnaround Time

2 days

Specimen Type

  • Plasma
  • Serum

Specimen Requirements

Tube/Container Type:

Preferred
  • Plain (Red Top)
Acceptable
  • Plain(Microtainer)
  • Lithium Heparin - Non-gel (Green Cap)
Preferred Sample Volume (ml)

4

Minimum Sample Volume (ml)

1

Paediatric Specimen Requirements

Tube/Container Type:

Preferred
  • Plain (Red Top)
Acceptable
  • Plain(Microtainer)
  • Lithium Heparin - Non-gel (Green Cap)
Preferred Sample Volume (ml)

0.5

Pre-testing Requirements

Oral dose:
A peak (two hours post dose) and a trough (within 1 hour before next dose) should be taken

IV does:
A peak (15 minutes after infusion completed) and a trough (within 1 hour before next dose) should be taken

Additional Specimen Information

Tubes containing gel (SST and PST) are NOT acceptable

Last updated: 08/06/2026