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Methods and systems to correct for hematocrit effects

  • US 8,391,940 B2
  • Filed: 02/04/2010
  • Issued: 03/05/2013
  • Est. Priority Date: 02/04/2010
  • Status: Expired due to Fees
First Claim
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1. A method of correcting a glucose concentration in a glucose measurement system having a test strip and an optical reading device, the method comprising:

  • determining a first glucose concentration by measuring a first reflectance at about a first wavelength proximate a surface of the test strip having a membrane impregnated with a color-producing reagent;

    measuring a temperature and measuring a second reflectance at about a second wavelength;

    determining a second glucose concentration with at least one equation to correct the first glucose concentration with the temperature and the second reflectance at about the second wavelength; and

    displaying the second glucose concentration.

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