The test is generally performed on respiratory samples obtained by nasopharyngeal swab; however, a nasal or sputum swab can also be used.
Uchunguzi huo kwa kawaida hufanywa kwenye sampuli za pumzi zilizopatikana na sampuli ya majaribio ya kliniki ya pua; hata hivyo; sampuli ya kohozi na mate pia inaweza kutumika.