Throat swab specimen for identification Flashcards
(14 cards)
identification in cases of Streptococcal infection?
Nasopharyngeal swab
What is the major throat flora that is the primary cause of Subacute Bacterial Endocarditis (SBE)?
• Viridans streptococci, including C. diphtheriae,
• Are the major throat flora and the leading cause of SBE SUBACUTE.
Which bacteria are known to produce dental caries by producing glucans and dextran?
• S. Imitis, S. mutans, and S. salivarius.
What is the major throat pathogen?
• Streptococcus pyogenes
What is the primary purpose of collecting a nasopharyngeal swab specimen?
• To detect respiratory infections like B. pertussis (whooping cough).
What other potential information can be obtained from a nasopharyngeal swab specimen?
• Can also be processed to determine the carrier state of N. meningitidis,
• which can exist as either normal flora or a pathogen.
What type of specimen is appropriate for detecting meningitis-causing pathogens?
• CSF (Cerebrospinal Fluid) is the appropriate specimen for detecting pathogens causing meningitis.
Where can normal flora (encapsulated) typically be found, and how can you detect their normal presence?
• Normal flora (encapsulated) is commonly found in the nasopharynx and oropharynx.
• Their normal presence can be detected using a nasopharyngeal swab.
How should Neisseria species be sampled if they are sensitive to cooled temperatures and toxic to cotton swabs?
• Neisseria species should be sampled using a swab made of Dacron or calcium alginate
• as they are sensitive to cooled temperatures and can be toxic to cotton swabs.
What should you avoid using cotton swabs for when it comes to Neisseria?
• Cotton swabs should not be used for Neisseria (toxic) that contain fatty acids.
What is the purpose of collecting an endotracheal aspirate specimen?
• Is collected when a patient is on a ventilator or intubated
• To assess respiratory secretions and monitor for infections.
Is calcium alginate suitable for use against viruses that inhibit or prevent replication?
• No, calcium alginate should not be used for viruses that inhibit or prevent replication.
What type of bacteria are swabs suitable for?
• Swabs are suitable for aerobic bacteria.
Is swabbing suitable for anaerobic culture?
• No, swabbing is not suitable for anaerobic culture.
