Medical Microbiology Procedures
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Questions and Answers

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?

  • 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?

  • 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?

    <p>Sputum collected by deep cough</p> Signup and view all the answers

    For which infection is a rectal swab the recommended specimen for culture?

    <p>Gonorrhea</p> Signup and view all the answers

    Which preservative maintains the appropriate colony counts for urine specimens at room temperature?

    <p>Boric Acid</p> Signup and view all the answers

    What is the purpose of using charcoal in specimen preservation?

    <p>To absorb fatty acids inhibiting the growth of fastidious bacteria</p> Signup and view all the answers

    Which type of specimen is stored in an incubator at 35°C?

    <p>CSF</p> Signup and view all the answers

    What does direct microscopy primarily assist in?

    <p>Detection and characterization of microorganisms</p> Signup and view all the answers

    In which temperature range are genital specimens and corneal swabs stored?

    <p>22 to 25°C</p> Signup and view all the answers

    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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    Description

    Test your knowledge on blood culture antiseptics, respiratory cultures, throat infections, and related medical microbiology procedures and conditions.

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