{"version":"1.0","provider_name":"National Drug Screening","provider_url":"https:\/\/www.nationaldrugscreening.com","author_name":"MWSAdmin","author_url":"https:\/\/www.nationaldrugscreening.com\/blogs\/author\/mwsadmin\/","title":"How is it that our instan - National Drug Screening","type":"rich","width":600,"height":338,"html":"
How is it that our instant tests that read positive are sometimes received back from the MRO as negative?<\/a><\/blockquote>