Abbott I-Stat PT/INR Point of Care Testing (POCT)

Abbrev Code:INRPOC   
Order Code:POC225Order Name:ISTAT INR Nursing POCT
Synonyms:Prothrombin Time; PT; INR
CPT Codes: 85610 x1
Turnaround Time:Performed daily; results are available immediately.

Collection Instructions

Specimen:Whole blood
Optimal Volume:0.5 mL
Minimum\Peds Volume:95 µL
Container:See Collection Instructions
Collection Instructions:Fresh whole blood collected in a plain non-anticoagulated syringe. Alternatively fresh capillary whole blood (first drop).
Causes for Rejection:Clotted specimen
Contraindications:Must be tested immediately to avoid sample clotting. INR by I-Stat method is only recommended to monitor anticoagulant therapy. It should not be used on patients with factor deficiencies or any other coagulopathies.

Processing and Shipping

Stability:Test immediately/
Test Performed at or Referral Lab Point of Care  (Range, UMMC East Bank, UMMC/UMMCH-West Bank)


Critical Range:INR:  Greater than 5.0
Therapeutic Range:INR: 0.9-1.2
Use:Monitor oral anticoagulant therapy at the patient's bedside.

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