Which technique should be used for ensuring the accuracy of glucose testing?

Ensuring the site is dry is critical for accurate glucose testing because moisture can interfere with the test results. When a sample is taken from a wet site, the presence of fluid may dilute the blood sample, leading to inaccurate readings. If the area is not thoroughly dried after cleansing, it can also affect the performance of the test strip, as many glucose meters rely on precise blood volumes for correct measurement.

Furthermore, drying the area helps to prevent irritation and reduces the risk of infection by ensuring that any cleansing substance, like alcohol, has evaporated completely. This is vital for maintaining proper hygiene and achieving reliable outcomes in testing.

Other measures, such as using a new vial for each test, monitoring the choice of testing site, or using a non-dominant hand, while relevant, do not address the core issue of ensuring that the site is optimally prepared for accurate readings, which is why it is essential to prioritize drying the testing area.