The difference between Oropharyngeal swab and Nasopharyngeal swab

When Sampling Nasopharyngeal Swab is used for collection, the subject should tilt his head back. Sampling Nasopharyngeal Swab is not along the direction of nostrils, but perpendicular to the face and enters from the common nasal meae. Sampling Nasopharyngeal Swab should be pressed down as far as pos......

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Matters Needing Attention When Using Sampling Nasopharyngeal Swab