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Questions and Answers
A patient presents with a suspected upper respiratory tract infection. Culture results indicate the presence of Peptococcus species. Given this finding, where is the most probable location of the infection?
A patient presents with a suspected upper respiratory tract infection. Culture results indicate the presence of Peptococcus species. Given this finding, where is the most probable location of the infection?
- Nasal cavity
- Pharynx
- Upper respiratory tract (correct)
- Nasopharynx
Following a routine check-up, a patient is found to have Staphylococcus aureus present in their nasal cavity. Which of the following scenarios would warrant immediate clinical intervention, considering the typical distribution of respiratory flora?
Following a routine check-up, a patient is found to have Staphylococcus aureus present in their nasal cavity. Which of the following scenarios would warrant immediate clinical intervention, considering the typical distribution of respiratory flora?
- The patient is immunocompromised and shows signs of a secondary opportunistic infection. (correct)
- The patient is asymptomatic, with no signs of active infection.
- The patient is also found to have _Cardiobacterium species_ present.
- The patient reports mild nasal congestion during allergy season.
A researcher is studying the interactions between different bacterial species in the nasopharynx. During an experiment, they observe that the presence of Acinetobacter species inhibits the growth of another bacterial species. Based on the provided information, which species is most likely being inhibited?
A researcher is studying the interactions between different bacterial species in the nasopharynx. During an experiment, they observe that the presence of Acinetobacter species inhibits the growth of another bacterial species. Based on the provided information, which species is most likely being inhibited?
- _Campylobacter sputorum_ (correct)
- _Bordetella parapertussis_
- _Staphylococcus aureus_
- _Candida albicans_
A clinical microbiologist is tasked with identifying a bacterial sample obtained from a patient's pharyngeal swab. Initial tests indicate the presence of Hemophilus parainfluenzae. What additional test would best differentiate between Hemophilus parainfluenzae and another commonly found species in the pharynx?
A clinical microbiologist is tasked with identifying a bacterial sample obtained from a patient's pharyngeal swab. Initial tests indicate the presence of Hemophilus parainfluenzae. What additional test would best differentiate between Hemophilus parainfluenzae and another commonly found species in the pharynx?
An investigation into a localized outbreak of upper respiratory infections reveals the presence of Kingella species in affected individuals. What epidemiological factor would most likely explain the clustering of these infections, given the typical habitat of Kingella species?
An investigation into a localized outbreak of upper respiratory infections reveals the presence of Kingella species in affected individuals. What epidemiological factor would most likely explain the clustering of these infections, given the typical habitat of Kingella species?
Flashcards
General Respiratory Flora
General Respiratory Flora
Normal flora found generally in the upper respiratory tract; includes Bordetella parapertussis & Eikenella corrodens.
Nasal Flora
Nasal Flora
Normal flora found in the nose; includes Cardiobacterium species and Staphylococcus aureus.
Nasopharyngeal Flora
Nasopharyngeal Flora
Normal flora found in the nasopharynx; includes Acinetobacter species, Campylobacter sputorum, and Hemophilus species.
Pharyngeal Flora
Pharyngeal Flora
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Upper Respiratory Flora
Upper Respiratory Flora
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Study Notes
- The normal flora of the oral cavity and the upper respiratory tract includes the following:
General Distribution
- Bordetella parapertussis and Eikenella corrodens are included.
Nose
- Cardiobacterium species and Staphylococcus aureus are included.
Nasopharynx
- Acinetobacter species, Campylobacter sputorum, and Hemophilus species are included.
Pharynx
- Candida albicans, Hemophilus parainfluenzae, and Hemophilus paraphrophilus are included.
Upper Respiratory Tract
- Kingella species, Peptococcus species, and Streptococcus pyogenes are included.
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Description
Overview of the normal flora found in the oral cavity and upper respiratory tract. Includes the general distribution of Bordetella parapertussis and Eikenella corrodens. Also covers the flora in the nose, nasopharynx, pharynx, and upper respiratory tract.
