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WHOLE BLOOD PT/INR, I-STAT - WP3
WP3
Analytes/procedures in bold type are regulated for proficiency testing by the Centers for Medicare & Medicaid Services (CMS).

Analyte Challenges per Shipment Number of Shipments
International normalized ratio (INR) 5 Three shipments per year
Prothrombin time 5

For method compatibility, see instrument matrix.


Program Information

  • Five 1.0‑mL lyophilized plasma specimens with corresponding diluents

Shipping Schedule

  • Shipment A: February 10
  • Shipment B: May 4
  • Shipment C: September 21

Instrument Program Code
  WP3 WP4 WP6 WP9 WP10
Abbott CoaguSense™        
ITC Hemochron Jr. Signature / Signature +, Signature Elite and Jr. II - Citrated cuvette        
ITC Hemochron Jr. Signature / Signature +, Signature Elite and Jr. II - Noncitrated cuvette        
i-STAT        
Roche CoaguChek XS Plus and XS Pro        
Roche CoaguChek XS System        





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