INR

Department

Haematology - Haemostasis

Delphic Registration Code

W (if on warfarin) NPT (if not on anticoagulant)

Synonyms

Prothrombin ratio

Turnaround Time

4 hours

Test Code

1600

Specimen Type

• Plasma

Specimen Requirements

Tube/Container Type:

Preferred

• Sodium Citrate (Light Blue Cap)

Preferred Sample Volume (ml)

2.7

Minimum Sample Volume (ml)

2.7

No of Samples Required

1

Paediatric Specimen Requirements

Tube/Container Type:

Preferred

• Sodium Citrate (Light Blue Cap)

Preferred Sample Volume (ml)

1.0

Additional Specimen Information

Ambient, sample should arrive within 4 hours of collection

Aliquot Instructions

Sample Type

• Plasma

Minimum Volume (ml)

0.5

Transport to Lab

Frozen

Additional Referral/Aliquot Information

0.5ml platelet poor plasma

Reference Intervals

NR 0.8 – 1.2

Therapeutic range (warfarin ) 2.0 – 3.0

Test Method

StaR Max using Neoplastine R

Non-Funded Test Cost

$12.63 (Exclusive of GST)

Billing Code

1600

Contact Information

Enquiry Form