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Nasopharyngeal

QuestionAnswer
List complications that may occur when performing nasopharyngeal swabbing • Trauma to nasal mucosa • Nose bleeds • Gagging • Fractured swab • CSF leakage
Name the 3 parts of the pharynx • Nasopharynx • Oropharynx • Hypopharynx/Laryngopharynx
What separates the nasopharynx from the oropharynx The soft palate
What tests can be done with a nasopharyngeal swab Covid PCR Influenza A&B H1N1
Name 2 structures inside the nasopharynx Adenoids Eustachian tube.
Name the structure that is inferior to the nasopharynx Oropharynx
Name 5 functions of the nasopharynx Respiration Middle ear ventilation and drainage Forms part of the resonating chamber for voice production Fighting infections Prevents Aspiration
What is the preferred swab for nasopharyngeal swab collection Orange Sigma Virocult swab
The pharynx's main nerve supply is via? Mainly supplied by the vagus and glossopharyngeal nerve
The pharynx receives its blood supply via Branches of the external carotid artery
Identify the main benefit of using a foam tipped swab for nasopharyngeal sampling Allows for optimal uptake of cells
In which laboratory department will a nasopharyngeal swab be tested mostly Molecular diagnostic department
List 3 features of the Sigma Virocult swab The swab has a fine foam tip and a built in “breakpoint”
What is the function of the transport medium in the tube the swab gets placed • The liquid transport medium is designed to keep the specimen moist to maintain viruses in a viable condition until cultured in a laboratory setting. • It contains antimicrobials which prevent the growth of most contaminating bacteria and fungi
Explain the position of the head for the procedure • Head needs to be tilted back • For elevation of the nares
What is the function of the adenoids Lymph tissue that helps fight infection and trap foreign particles
List 4 items of PPE that is required when obtaining nasopharyngeal samples for covid -19 • N95 mask • Face shield • Gown • Gloves
Explain the correct way the swab should be inserted To be inserted in a backward motion
What is the sequence procedure for putting on PPE • Gown is put on first • The mask is put on next • Goggles are put on after the mask • Gloves put on last (pulled over gown cuffs)
What is added to the liquid culture medium that prevents growth of most contaminating bacteria and fungi? Antimicrobials
What is the sequence procedure for removing PPE • Gloves are removed first • Goggles-touching only the head band • Gown (pulling it off away from the body so that it turns inside out. • Mask is removed last touching only the strings. • Wash hands immediately.
Why do we ask the patient to breathe through the mouth or nose for the duration of the procedure Sufficient oxygenation allows for better co-operation and lessens discomfort throughout the procedure
Why do we ask the patient tilt the head back Allows for adequate elevation of the nares and facilitates specimen collection
What is the function of the Eustachian tube • Ventilates and equalizes pressure in the middle ear • Drainage system for middle ear secretions to drain into the nasopharynx
Explain why the patient should blow their nose ( if they have allot of mucous) prior to sampling? Excess mucous can inhibit the collection of cells
What is the reason for removing the nasopharyngeal swab in an aseptic manner Maintains swab sterility for accurate interpretation of results
Why does the swab need to be rotated a few times once it has been inserted into the nasopharynx To allow infected cells to adhere to the fine foam tip
What is the reason for sneezing, coughing and tearing of the eyes to occur (due to triggering of the nasal lacrimal reflex
Created by: cisca
 

 



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