I hand 3 beers 48 hours ago will it show up on a EtG test

This sort of question is asked frequently on our site. The short answer is "maybe".

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Given the amount consumed and the time span it is unlikely that EtG would still be present.

NOTICE: Any person or entity that is subjected to or relies on EtG testing should read the Advisory issued by the US Department of Health and Human Services, 10/ 2006 in effect as of date of this posting. Full copy available here > EtG, biomarkers

Ref: Helander, 2004 (3 drinks)