Using the information on this package, how would you classify the substance it contains?

Using the information on this package, how would you classify the substance it contains?

• A. Category B Infectious substance
• B. Exempt patient specimen
• C. Not regulated
• D. Category A Infectious substance

Answer: (D)

Infectious substances are categorized to determine how they must be packaged and labeled for transport. Category A covers materials that could cause life‑threatening or permanently disabling disease in humans and requires the most stringent packaging and UN labeling (UN2814). Category B is for less dangerous infectious substances (UN3373). Exempt patient specimens and not regulated items fall outside the need for these Category A/B requirements.

If the package information indicates Category A (for example, a Category A/UN2814 designation and the appropriate labeling), it signals the substance must be treated as Category A, with the strict packaging and handling that entails. That’s why Category A Infectious Substance is the best fit here.