Theophylline (Blood)

Testing Laboratory

Auckland Te Toka Tumai | Auckland Hospital

Department

Chemical Pathology

Delphic Registration Code (Alpha Code)

THEO

Test Code (Numeric Code)

0809

Laboratory Handling

Separating

Samples must be separated within 24hrs of collection.

Sample Stability

1 week at 2-8°C, 60 days at -20°C.

Synonyms

Aminophylline

Turnaround Time

3 hours

Specimen Type

  • Plasma
  • Serum

Specimen Requirements

Tube/Container Type:

Preferred
  • Lithium Heparin PST- Gel (Light Green Cap)
Acceptable
  • Lithium Heparin - Non-gel (Green Cap)
  • Plain (Red Top)
  • SST II (Gold Cap)
Preferred Sample Volume (ml)

5

Minimum Sample Volume (ml)

3.5

No of Samples Required

1

Paediatric Specimen Requirements

Tube/Container Type:

Preferred
  • Lithium Heparin PST- Gel (Light Green Cap)
Acceptable
  • Lithium Heparin - Non-gel (Green Cap)
  • Plain (Red Top)
  • SST II (Gold Cap)
Preferred Sample Volume (ml)

0.5

Minimum Sample Volume (ml)

0.5

Additional Specimen Information

0.5 mL Paediatric Microtainer PST Blood (Preferred)
0.5 mL Paediatric Microtainer Plain Blood
0.5 mL Paediatric Microtainer Heparin Blood

Last updated: 28/07/2026