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HelpTest ID BLOD0669 Protime/INR
AKA
INR PT, PTINR, INR
Specimen Type/Requirements
Blue-Top (Sodium Citrate) Tube
Tube must be filled to the minimum draw line. Transport to laboratory immediately. Hemolyzed specimens will be rejected.
Specimen Volume
| Preferred Volume | 1 full Blue-Top (Sodium Citrate) Tube |
| Minimum Volume | 1 mL platelet-poor plasma |
Stability/Transport
| Room Temperature | 24 hours (UNSPUN whole blood) | Preferred for Transport |
| Refrigerated | N/A | |
| Frozen | 1 month (platelet-poor plasma) |
Performed Test Frequency
Monday-Sunday
Methodology
Mechanical- Rabbit Brain Thromboplastin
Performing Lab
Sanford Laboratories Fargo-Core Lab
CPT
85610