Podcast
Questions and Answers
Which antiseptic is recommended before collecting a blood culture?
Which antiseptic is recommended before collecting a blood culture?
- Chlorhexidine
- Iodine
- Alcohol followed by iodine (correct)
- Alcohol
What is the main purpose of using an anticoagulant in blood cultures?
What is the main purpose of using an anticoagulant in blood cultures?
- Neutralizing bacteriocidal effect of human serum (correct)
- Maintaining the condition for anaerobic bacteria growth
- Preventing phagocytosis
- Enhancing antibiotic removal capability
Which bacterial strain is associated with Oral Thrush?
Which bacterial strain is associated with Oral Thrush?
- Bordetella pertussis
- Candida albicans (correct)
- Neisseria gonorrhoeae
- Haemophilus influenzae type B
In what type of specimen is an anaerobic culture appropriate for Lower Respiratory Tract Culture?
In what type of specimen is an anaerobic culture appropriate for Lower Respiratory Tract Culture?
For which infection is a rectal swab the recommended specimen for culture?
For which infection is a rectal swab the recommended specimen for culture?
Which preservative maintains the appropriate colony counts for urine specimens at room temperature?
Which preservative maintains the appropriate colony counts for urine specimens at room temperature?
What is the purpose of using charcoal in specimen preservation?
What is the purpose of using charcoal in specimen preservation?
Which type of specimen is stored in an incubator at 35°C?
Which type of specimen is stored in an incubator at 35°C?
What does direct microscopy primarily assist in?
What does direct microscopy primarily assist in?
In which temperature range are genital specimens and corneal swabs stored?
In which temperature range are genital specimens and corneal swabs stored?
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Study Notes
Blood Culture and Antiseptics
- 2% chlorhexidine is the recommended antiseptic before collecting a blood culture.
Blood Culture and Anticoagulants
- The main purpose of using an anticoagulant in blood cultures is to prevent clotting.
Bacterial Strains and Infections
- Candida albicans is the bacterial strain associated with Oral Thrush.
Lower Respiratory Tract Culture
- An anaerobic culture is appropriate for bronchoalveolar lavage (BAL) or pleural fluid specimens.
Infections and Specimen Collection
- A rectal swab is the recommended specimen for culture in Neisseria gonorrhoeae infections.
Urine Specimen Preservation
- Boric acid is the preservative that maintains the appropriate colony counts for urine specimens at room temperature.
Specimen Preservation
- Charcoal is used in specimen preservation to absorb and remove inhibitors.
Specimen Storage
- Blood culture specimens are stored in an incubator at 35°C.
Direct Microscopy
- Direct microscopy primarily assists in the rapid identification of pathogens.
Genital and Corneal Specimen Storage
- Genital specimens and corneal swabs are stored at a temperature range of 2-8°C.
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