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Questions and Answers
What is one of the additional tests used for further identification of Campylobacter species?
What is one of the additional tests used for further identification of Campylobacter species?
- Glucose fermentation test
- Urea test
- Nitrate reduction test (correct)
- Catalase test
Which of the following tests is NOT used for further identification of Campylobacter species?
Which of the following tests is NOT used for further identification of Campylobacter species?
- Oxidase test
- Catalase test
- Urease test (correct)
- Nitrate reduction test
What is the purpose of using additional tests like nitrate reduction for Campylobacter species?
What is the purpose of using additional tests like nitrate reduction for Campylobacter species?
- To detect the presence of bacterial toxins
- To detect the presence of bacterial Capsule
- To determine the level of bacterial resistance
- To identify the specific species of Campylobacter (correct)
Which of the following is a characteristic of Campylobacter species that can be identified using additional tests?
Which of the following is a characteristic of Campylobacter species that can be identified using additional tests?
Why are additional tests like nitrate reduction necessary for Campylobacter species identification?
Why are additional tests like nitrate reduction necessary for Campylobacter species identification?
From which source can a fetus occasionally be recovered?
From which source can a fetus occasionally be recovered?
Which type of patients are more likely to have a fetus recovered from their blood cultures?
Which type of patients are more likely to have a fetus recovered from their blood cultures?
What is the primary purpose of blood cultures?
What is the primary purpose of blood cultures?
In which circumstance is it possible to recover a fetus from blood cultures?
In which circumstance is it possible to recover a fetus from blood cultures?
What is the significance of recovering a fetus from blood cultures?
What is the significance of recovering a fetus from blood cultures?
What is the primary cause of illness associated with C. jejuni?
What is the primary cause of illness associated with C. jejuni?
Which of the following Campylobacter species is the most commonly isolated from humans?
Which of the following Campylobacter species is the most commonly isolated from humans?
Which of the following is NOT a species of Campylobacter that is less commonly isolated from humans?
Which of the following is NOT a species of Campylobacter that is less commonly isolated from humans?
What is the role of C. jejuni in human disease?
What is the role of C. jejuni in human disease?
Which of the following statements about Campylobacter species is TRUE?
Which of the following statements about Campylobacter species is TRUE?
What is the purpose of collecting blood samples in the diagnosis of H. pylori?
What is the purpose of collecting blood samples in the diagnosis of H. pylori?
What type of samples are collected for H. pylori antigen detection?
What type of samples are collected for H. pylori antigen detection?
What is the significance of detecting serum antibodies in H. pylori infection?
What is the significance of detecting serum antibodies in H. pylori infection?
Which of the following samples is not used for H. pylori antigen detection?
Which of the following samples is not used for H. pylori antigen detection?
What is the relationship between H. pylori and serum antibodies?
What is the relationship between H. pylori and serum antibodies?
Where is the tissue for culture typically obtained from?
Where is the tissue for culture typically obtained from?
What procedure is used to obtain tissue for culture from the gastric mucosa?
What procedure is used to obtain tissue for culture from the gastric mucosa?
What is the source of the tissue used for culture?
What is the source of the tissue used for culture?
What is the purpose of obtaining tissue from the gastric mucosa?
What is the purpose of obtaining tissue from the gastric mucosa?
What is the method used to obtain tissue from the gastric mucosa for culture?
What is the method used to obtain tissue from the gastric mucosa for culture?
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Study Notes
Campylobacter Species
- C. jejuni is the prototype organism and a common cause of diarrhea in humans.
Other Campylobacter Species
- C. fetus, C. coli, and C. Follow are less commonly isolated from humans.
Morphology and Identification
- Nitrate reduction test is used for further identification of Campylobacter species.
C. fetus
- May occasionally be recovered from blood cultures, usually from immunocompromised or elderly patients.
Diagnostic Laboratory Tests
- Blood is collected for determination of serum antibodies.
- Stool samples may be collected for H. pylori antigen detection.
- Tissue for culture is obtained by endoscopy and biopsy of the gastric mucosa.
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