How is G6PD activity assessed in workup of glucose-6-phosphate dehydrogenase (G6PD) deficiency?

Updated: Jun 25, 2020
  • Author: Lawrence C Wolfe, MD; Chief Editor: George T Griffing, MD  more...
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Answer

Quantitative tests for G6PD activity are considered the criterion standard. The rate of NADPH generation is spectrophotometrically measured at a wavelength of 340 nm. The G6PD activity is finally expressed as G6PD IU/red blood cell and G6PD IU/hemoglobin ratios. [6, 7, 8]


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