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HelpTEST ID PT PROTIME INR (PT INR)
Performing Laboratory
NRLS-Core Coagulation
Specimen Type
Citrated Whole blood
Specimen Required
Container/Tube:
Preferred: 3.2 % Sodium Citrate tube
Acceptable: None
Specimen Volume: Tube must be filled
Collection Instructions:
Draw a full, light blue-top (3.2% sodium citrate) tube. Tube must be filled to capacity. (Blood drawn from a heparin line is not acceptable.)
Specimen Minimum Volume
Tube must be filled. Underfilled tubes will be rejected.
Specimen Stability Information
| Specimen Type | Temperature | Time |
|---|---|---|
| Whole Blood | Refrigerated | Not acceptable |
| Ambient(preferred) | 24 hours unopened/unspun | |
| Frozen | Not acceptable | |
| Plasma | Refrigerated | Not acceptable |
| Ambient(preferred) | 24 hours | |
| Frozen | 2 weeks |
Reference Values
An interpretive report will be provided