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Test Code POCINR POC INR (Coagucheck)

Specimen and Container/Tube

Specimen Type: Blood

Preferred Specimen: Blood (Finger stick)

Other Acceptable specimens: N/A

Specimen Stability

Storage Temperature

Stability

Room temperature

Not Acceptable

 

Refrigerated

Not Acceptable

Frozen

 Not Acceptable

Collection Instructions

  •  Identify desired puncture site and cleanse with alcohol.
  •  Position lancet firmly against puncture site. Puncture site is middle or ring finger. Dry with gauze.
  • To activate the lancet, press the lancet firmly against the puncture site. Do not remove the device from the site until an audible click is heard. Dispose of lancet into sharps container after use.
  • Massage the lanced finger gently until a drop of blood is formed. DO NOT press or squeeze the finger.
  • Wipe the first drop of blood away.
  • Apply a well-formed drop to the CoaguChek XS Pro Test Strip.

Specimen Handling and Transport Instructions

UCMC Onsite Instructions: 

Testing should be performed immediately on fingerstick.

 

UCMC Offsite and UC MedLab Outreach Instructions: 

Testing should be performed immediately on fingerstick.

Rejection Criteria

Unacceptable Sample Types:

  • Whole blood collected into devices containing fluoride, EDTA, sodium, or ammonium
  • Serum or plasma

Reference Values

 

Test

Age

Sex

Reference Range

INR

All

All

0.9-1.1

Critical Values

Analyte

Unit

Low

High

Age

INR

NA

NA

NA

NA

Turnaround Time

STAT Turnaround Time: N/A

Routine Turnaround Time: N/A

Testing Schedule: 24/7

Clinical Indications

CoaguChek  system is used for point-of-care testing of blood coagulation to monitor INR in patients on anticoagulant therapy (vitamin K antagonist such as warfarin).

Methodology

Electrochemical measurement method

CPT Codes

85610

LOINC Codes

34714-6

Synonyms/Keyword Search

Point of Care INR

POC INR

Last Review Date

6/3026

Test Components

INR
 

Additional Information

  • When the POC INR is > 3.5, a sample must be collected into socium citrate blue top tube and send to the main laboratory for confirmation.
  • Results should always be assessed in conjunction with patient's medical history, clinical examination and other findings.

Volume

Preferred Volume: 1.5 microliters

Minimum Volume: 1.5 microliters