Anti-Xa Rivaroxaban Assay (Blood)

Testing Laboratory

Counties Manukau | Middlemore Hospital

Department

Haematology

Delphic Registration Code (Alpha Code)

RIVA

Test Code (Numeric Code)

1859

Laboratory Handling

Phlebotomy

Tube must be filled up to the "Fill Line"

Sample Stability

2 hours at 9°C- 24°C (room temperature)

Turnaround Time

1 hour

Available 24 hours

Specimen Type

  • Plasma

Specimen Requirements

Tube/Container Type:

Preferred
  • Citrate (Light Blue Cap)
Preferred Sample Volume (ml)

2.7

Paediatric Specimen Requirements

Tube/Container Type:

Preferred
  • Citrate (Light Blue Cap)
Preferred Sample Volume (ml)

2.7

Additional Specimen Information

Tube must be filled up to the "Fill Line"

Last updated: 28/09/2026