Capillary INR
General Information
Lab Name
Capillary INR
Lab Code
CAPINR
Epic Name
Capillary INR
Description
Ordered by Phlebotomy at HMC only, after failed venipuncture attempt for PRO test. This test is used for monitoring warfarin therapy only. This test cannot be used for the assessment of a therapy with direct thrombin inhibitors or direct Xa inhibitors.
Synonyms
Fingerstick Protime, Prothrombin Time, Protime, Rapid Protime
Interpretation
Method
Rapid Protime Analyzer, Whole Blood, clot-based
Reference Range
| Female | Male | ||
|---|---|---|---|
| Age | Range | Age | Range |
| 0- | 0.8-1.3 | 0- | 0.8-1.3 |
Effective date: 05/15/2012
Interferences and Limitations
There is no significant effect on this test result from heparin concentrations up to 0.8 U/mL, Low molecular weight heparins up to 2 IU anti-factor Xa activity/mL, Clopidogrel up to 20 mg/dL, or Fondaparinux up to 0.5 mg/L. The presence of Lupus Inhibitor antibodies can potentially lead to falsely elevated INR values.
Ordering & Collection
Specimen Type
Collection
fingerstick only, by Blood Draw only
Processing
This test performed by phlebotomy during regular Blood Draw hours only.
Performance
LIS Dept Code
Coagulation (COAG)
Performing Location(s)
| HMC |
Phlebotomy
206-744-4256 325 9th Ave, Rm # GWH-39, Seattle, WA 98104-2420 |
Blood draw hours |
|---|
Frequency
Available at HMC Blood Draw only Monday-Friday 0800-1730
Available STAT?
Yes