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Microbiology and Specimen Collection Flashcards

6 cards from real RMA practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 6 Microbiology and Specimen Collection flashcards as text

  1. Which type of microorganism is responsible for the majority of urinary tract infections (UTIs)?

    Answer: Bacteria

    The vast majority of UTIs are caused by bacteria, most commonly Escherichia coli, which accounts for approximately 80–85% of community-acquired UTIs.

  2. What is the purpose of a culture and sensitivity (C&S) test?

    Answer: To identify the causative organism of an infection and determine which antibiotics will be effective

    A culture and sensitivity test identifies the specific microorganism causing an infection (culture) and then tests which antibiotics are effective at killing or inhibiting it (sensitivity/susceptibility testing).

  3. A throat swab for a rapid strep test should be collected by swabbing which area?

    Answer: The posterior pharynx and tonsillar areas

    For a throat culture or rapid strep test, the swab must be applied firmly to the posterior pharynx (back of the throat) and tonsillar areas or any visible exudate or inflamed areas.

  4. Which personal protective equipment (PPE) is required when handling potentially infectious specimens in a medical office?

    Answer: Gloves at minimum; additional PPE based on risk assessment

    Standard precautions require gloves when handling any potentially infectious material. Additional PPE (gown, mask, eye protection) is used based on the risk of splash or aerosol exposure.

  5. What is the correct way to label a specimen container before collection?

    Answer: Label it in the collection room immediately after the specimen is obtained

    Specimen containers should be labeled immediately after collection in the presence of the patient, after the specimen has been obtained, to ensure correct patient-to-specimen identification.

  6. What does 'gram-positive' mean when bacteria are classified by Gram stain?

    Answer: The bacteria retain the crystal violet dye and appear purple under the microscope

    Gram-positive bacteria retain the crystal violet dye used in Gram staining due to their thick peptidoglycan cell wall layer, appearing purple or dark blue under the microscope.