Is Pharyngeal Swab Collection Accurate and Safe?
Pharyngeal swab collection is a standard method for detecting respiratory pathogens. A properly collected pharyngeal swab specimen is critical for helping physicians accurately diagnose a patient's condition.
Method for Correct Pharyngeal Swab Collection
The operator should first verify the patient's information and perform hand hygiene. A sterile single-use virus specimen collection kit is then opened. The patient should open their mouth wide and say "ahh" to expose the pharynx.
Using the swab from the virus specimen collection kit, the operator should firmly rub the posterior pharynx, including both tonsillar crypts and the palatine arches. Swab back and forth 3 times to ensure sufficient cell collection.
Important Precautions
Avoid collecting samples within two hours of eating or drinking. This prevents contamination of the specimen.
Rinse the mouth with plain water or a saline solution if there is any bleeding or foreign matter present before collection.
Ensure a broad and thorough collection area while carefully avoiding contact with the tongue to maximize cellular yield.
After collection, securely tighten the cap of the collection tube to prevent leakage and ensure the integrity of the specimen.
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