Nasopharyngeal Swab
Nasopharyngeal Swab - Related Videos
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A macrofoam based sampling methodology was developed and evaluated for the detection and quantification of norovirus on environmental hard surfaces.
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Nasopharyngeal suctioning is a procedure to remove secretions from the upper part of the respiratory tract that the patient cannot clear independently. It helps maintain airway patency and prevents complications such as aspiration pneumonia. Equipment Required Suction machine with adjustable pressure settings Sterile suction catheters (appropriate size for the patient) Sterile gloves Sterile saline or water (for irrigation or lubrication) Water-soluble lubricant Personal protective...
02:34
Quantification of Group B Streptococcus Load in the Mouse Vaginal Lumen via Swabbing and Chromogenic Culture
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Source: Patras, K. A. & Doran, K. S. A Murine Model of Group B Streptococcus Vaginal Colonization. J. Vis. Exp. (2016)This video demonstrates the quantification of vaginal Group B Streptococcus (GBS) load in a mouse model using swabbing and chromogenic culture. It outlines the steps involved in sample collection, plating, and colony counting to quantify GBS load in the mouse vaginal lumen.
12:21
Examining the Role of Nasopharyngeal-associated Lymphoreticular Tissue (NALT) in Mouse Responses to Vaccines
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FAQs
The flexible synthetic tip can be passed gently through the nostril to reach the nasopharynx while contacting mucosal secretions. Its purpose in this collection method is to gather cells, viral particles, or other microbial material that may be present at the sampling site. The collected material then provides the specimen for laboratory testing.
A nasopharyngeal specimen may contain mucosal secretions, cells, viral particles, or other microbial material. These components give laboratory assays different targets to analyze, depending on the test selected. Because the specimen reflects material collected from the upper respiratory tract, its quality depends on obtaining adequate contact with the relevant mucosal surface.
Molecular assays, antigen tests, and culture represent different laboratory approaches for examining the same collected specimen. The source material identifies these options as methods for detecting pathogens, including respiratory viruses, but does not specify that one method is universally superior. The selected analysis determines how the laboratory evaluates the specimen and reports findings.
Collection requires gently passing the flexible, synthetic-tipped swab through the nostril to the nasopharynx, allowing contact with mucosal secretions, and then removing it. After collection, the swab must be placed in transport medium. This sequence preserves the specimen pathway from the patient’s upper respiratory tract to the laboratory analysis.
These factors influence whether the laboratory receives a suitable specimen for analysis. Proper technique supports collection of cells, viral particles, or other microbial material, while correct handling and placement in transport medium help maintain the collected sample. Timely transport is also essential because delays can compromise the reliability of the eventual laboratory result.
Clinicians may request this specimen-collection method when laboratory evaluation of a suspected respiratory infection is needed. The resulting sample can support testing for pathogens such as respiratory viruses. Findings may then contribute to patient management and infection-control decisions, linking laboratory identification with measures intended to guide care and reduce transmission risk.