Click on the
first letter of test name, or select test group, to review specifications: |
||
| PT |
|
| Alternate Names: | Prothrombin Time |
| Performed: | Daily, 24 Hours |
| Methodology: | Photo Optical Clotting |
| Turnaround Time: | Routine:
4 Hours Stat: < 1 hour |
| Container / Specimen Requirements |
|
| Container / Tube: | Blue Vacutainer® tube (sodium citrate) |
| Minimum Volume (tube drawn to FULL draw) | |
|
4.5 mL |
|
2.7 mL |
| Special Handling or Timing of Specimen: | None |
| Preparation of Patient: | None |
| Reference Range: | PT: 9.4 - 11.4 seconds INR: 0.84 - 1.29 |
|
PT: > 45.0 seconds Pre-Surgical PT: > 13.5 seconds INR >5 |
| Causes for Specimen Rejection: | Improper labeling. Clotted specimens. Hemolysis. Specimens diluted with I.V. fluid or contaminated with heparin. Specimens that are too old (>2 hours). Tubes must be filled to top of blue line on label. |
| CareManager Test Group: CareManager Name/Alias: |
CLAB pt |
| Specimen Labeling: | Click here for policy |
© 2002
New Hanover Health Network
2131 South 17th Street Wilmington, North Carolina 28401 910.343.7000
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2131 South 17th Street Wilmington, North Carolina 28401 910.343.7000
Please read disclaimer and privacy statement