×

Automated methods for detecting sample collection with erroneous anticoagulant in clinical assays

  • US 8,265,904 B2
  • Filed: 12/19/2008
  • Issued: 09/11/2012
  • Est. Priority Date: 12/20/2007
  • Status: Active Grant
First Claim
Patent Images

1. An automatic method for determining that a collection device was incorrectly used to collect a sample for analysis of analyte species in the sample, the method comprising:

  • (a) adding the sample to an analyzer instrument having means for analyzing species that include a monovalent cation, a divalent cation, and one or more other analytes, wherein the sample is from the collection device;

    (b) determining a concentration of the monovalent cation, a concentration of the divalent cation, and a concentration of the one or more other analytes in said sample;

    (c) comparing the monovalent cation concentration to a predetermined upper threshold concentration value and the divalent cation concentration to a predetermined lower threshold concentration value; and

    (d) reporting by said analyzer instrument that the sample was collected with a wrong anticoagulant when both said threshold concentration values are surpassed, but not when only one of said threshold concentration values is surpassed, where a correct collection device for the sample omits a selected anticoagulant.

View all claims
  • 2 Assignments
Timeline View
Assignment View
    ×
    ×