Laboratory:
Chemical Pathology
Referral Laboratory:
MiChart Code:
ED POC INR (PT), ED lab
Soft Order Code:
ERPT
Synonyms:
Container:
Whole blood, light blue top sodium citrate, 90 % full
Normal Volume:
Sodium citrated light blue top must be 90% full 50 uL
Days Set Up:
Continuous, 24 hours
Analytic Time:
Dependent on patient's coagulation status, analyzer reports up to 500 seconds.
Reference Range:
*Reference ranges may change over time. Please refer to the original patient report when evaluating results.
Reference range may change over time. Please refer to the original patient report when evaluating results
Test Usage:
Emergency room patients that are being evaluated with stroke protocol.
Contraindications:
Patient's who have hematocrit levels of < 20 or > 55 % should not be tested using this method.
Test Limitations:
Sample must be collected in a manner that prevents contamination with tissue thromboplastin, indwelling intravenous solutions or alcohol cleaning solutions that interfere with coagulation assays. Use of the glass collection tube is prohibited. Specimen are Hemolyzed, clotted or partially clotted, presence of unexpected anticoagulant should to be used for testing
Test Methodology:
Mechanical endpoint clotting mechanism which is monitored optically via LED sensors.
LOINC:
INR 34714-6, Seconds 5964-2
CPT Code:
85610
Rejection Criteria:
Light blue sodium citrated tube must be filled 90% for testing
Storage Temperature:
Room temperature
Specimen Retention:
Patient blood tubes are held in the Emergency room laboratory for 4 hours.
Test ID:
5848