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Some companies offer only EtG testing. What are the disadvantages of this?

April 26, 2017companies disadvantages etg Offer Testing

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Some companies offer only EtG testing. What are the disadvantages of this?

2 Answers

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It is recommended that EtG testing is performed on the most recent 1-3 months of hair growth (approximately 1 – 3cm from the scalp). That is due to the fact that using the EtG test in isolation carries the risk of the ‘wash-out’ effect whereby the frequent washing and intense shampooing of a donor’s hair slowly removes the EtG marker that has been deposited onto the hair. As a result, this marker is sensitive to false-negative results. Trimega Laboratories therefore, recommends the combined use of EtG and FAEE testing at all times.

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Posted

It is recommended that EtG testing is performed on the most recent 0-3 months of hair growth (approximately 0 – 3cm from the scalp). That is due to the fact that using the EtG test in isolation carries the risk of the ‘wash-out’ effect whereby the frequent washing and intense shampooing of a donor’s hair slowly removes the EtG marker that has been deposited onto the hair. As a result, this marker is sensitive to false-negative results. Trimega Laboratories therefore, recommends the combined use of EtG and FAEE testing at all times.