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The correct direction of nasopharyngeal swab sampling

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Nasopharyngeal swab, oropharyngeal swab
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The correct direction of nasopharyngeal swab sampling

The use of nasopharyngeal swabs to collect respiratory mucosal surface specimens is a common clinical operation that can be used to assess whether there are respiratory viruses or bacterial infections in adults and children.

Nasopharyngeal swabs are generally common clinical operations and are important for the diagnosis of respiratory tract infections. significance.

When sampling a nasopharyngeal swab, the direction of the swab should be parallel to the upper jaw, and the tip of the swab should face the direction of the earlobe, not the top of the head.

If the swab encounters resistance when passing through the nasal passage, you need to move the swab back and try to change the angle reenter.

When clinical specimens are actually taken, many beginners will turn the top of the throat swab toward the top of the head.

Since most of the bacteria and viruses are parasitic on the bottom of the nasopharynx, the positive rate will be significantly reduced.

The depth of the throat swab to enter the nasal cavity is equivalent to the distance from the tip of the nose to the earlobe.

If the tip of the throat swab faces the top of the head in actual operation, the depth of the throat swab entering the nasal cavity will be significantly insufficient.

If resistance is encountered when the throat swab enters along the direction of the earlobe, it needs to be adjusted and rotated slightly to enter the nasal cavity.

It cannot be inserted forcibly to avoid damage to the nasal cavity of the sampled person.

You can stop moving until you reach the bottom of the nasopharynx with a feeling of hitting the wall and proceed with sampling.

The insertion depth of the swab should be equal to the distance from the nostril to the outer opening of the ear.

The feeling of hitting the wall means that the nasopharyngeal swab has reached the bottom of the nasopharynx.

After reaching the bottom of the nasopharynx, the nasopharyngeal swab should be placed at the bottom of the nasopharynx for 10-15 seconds to allow the swab to fully contact the bottom of the nasopharyngeal secretions and absorb more Pathogen.

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