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HelpTest ID BLOD0669 Prothrombin Time
AKA
PT, Protime, INR
Specimen Type/Requirements
Blue top (3.2% Sodium Citrate) tube - Plasma
Test is not affected by hemolysis. Test is not affected by lipemia.
Specimen Volume
| Preferred Volume | 1.0 mL |
|---|---|
| Minimum Volume | 0.5 mL |
Stability/Transport
3.2% Sodium Citrate whole blood tube
| Room Temperature | 24 hours capped/ 4 hours uncapped | Preferred for transport |
|---|---|---|
| Refrigerated | NA | |
| Frozen | NA |
Double spun platelet poor plasma
| Room Temperature | NA | |
|---|---|---|
| Refrigerated | Not Acceptable | |
| Frozen | 14 days at -20 C |
Performed Test Frequency
Monday through Sunday
Methodology
Mechanical clot detection
Performing Lab
Sanford Laboratories Bismarck
CPT
85610