Laboratory Test Detail

Last Updated: September 17, 2019 @ 9:13 am

3500

Prothrombin Time

Specimen:Collect:
  • One Blue Top (Na Citrate)
Submit:
  • 1 mL (Min:0.5 mL) Plasma . Submit Frozen. Submit in a Standard Transport Tube.
Special Handling:
  • Whole blood may be submitted ambient if sample reaches lab within 24 hours
Rejection Criteria:
  • Clotted Specimen
  • Collection tube not properly filled
  • Grossly Hemolyzed Samples
  • Refrigerated samples
Stability:Ambient: 8 Hour(s); Refrigerated: Unacceptable; Frozen: 2 Week(s); Incubated: Unacceptable
Methodology:
  • Mechanical Clot Detection
Performed:Mon-Fri
Reported:1-3 Day(s)
CPT Codes:
  • 85610
Interpretive Data:Please see report for interpretive data.
INR Ratio Reference Range:
Normal = 0.8-1.3
Std Dose = 2.0-3.0
High Dose = 2.5-3.5

The INR reference range is valid ONLY for patients stabilized on oral anticoagulants.
Components:
  • 3501 - MEAN PAT. NORMAL
  • 3502 - RATIO: PAT./MEAN
  • 3507 - PT REF RANGE
  • 3508 - PROTIME
  • 3509 - INR
Print Friendly, PDF & Email

Disclaimer:
It is preferable to locate tests on the website and not rely on printed test information, which may soon be out of date.
Updated test information can only be guaranteed by using this website.