← All CMA Flashcard Decks

Health Risks & Environmental Impact Flashcards

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

Read the first 7 Health Risks & Environmental Impact flashcards as text
  1. Which mold species is most commonly associated with producing trichothecene mycotoxins linked to severe immune suppression?

    Answer: Stachybotrys chartarum

    Stachybotrys chartarum (black mold) is the primary producer of trichothecene mycotoxins, which can significantly suppress immune function.

  2. A child living in a mold-contaminated home develops recurrent sinusitis and fatigue. Which immune response mechanism is most directly triggered by chronic mold spore inhalation?

    Answer: Type I IgE-mediated hypersensitivity

    Mold spores most commonly trigger Type I IgE-mediated hypersensitivity, leading to allergic rhinitis, sinusitis, and asthma.

  3. Which environmental condition most significantly increases the rate of mycotoxin production by indoor molds?

    Answer: High humidity above 70% RH combined with organic substrate

    High relative humidity (above 70%) combined with organic substrates such as wood or drywall dramatically accelerates mycotoxin synthesis.

  4. Aflatoxin B1, produced by Aspergillus flavus, is classified as a Group 1 carcinogen by the IARC. Which organ is the primary target for aflatoxin-induced cancer?

    Answer: Liver

    Aflatoxin B1 is a potent hepatocarcinogen, primarily causing hepatocellular carcinoma after chronic exposure.

  5. Which population group faces the GREATEST risk of invasive fungal infection when exposed to Aspergillus spores in an indoor environment?

    Answer: Immunocompromised individuals such as organ transplant recipients

    Immunocompromised individuals, including transplant recipients on immunosuppressants, are at highest risk for invasive aspergillosis.

  6. Hypersensitivity Pneumonitis (HP) differs from mold-triggered asthma primarily because HP involves:

    Answer: An inflammatory response in the alveoli driven by immune complex and T-cell reactions

    HP is characterized by alveolar inflammation driven by immune complex deposition (Type III) and T-cell-mediated (Type IV) reactions, not simple bronchoconstriction.

  7. A mold assessor documents Chaetomium globosum growing extensively on water-damaged drywall. Which health concern is most specifically associated with this mold?

    Answer: Production of chaetoglobosins linked to cytotoxic and neurological effects

    Chaetomium globosum produces chaetoglobosins, which are cytotoxic compounds with documented neurological and immunosuppressive effects.