Which factors determine the choice of euthanasia method, and who approves them?

• A. Species, age, health, welfare; method should align with AVMA guidelines; approval by IACUC
• B. Cost and ease; approval by supervisor
• C. Researcher preference; approval by IACUC
• D. Weight; approval by attending veterinarian

Answer: (A)

Selecting a humane euthanasia method hinges on animal welfare considerations and regulatory oversight. The method chosen must account for species, age, health status, and overall welfare to ensure a quick, humane end with minimal distress. Since different animals and conditions require different approaches, established guidelines guide the decision; the AVMA Guidelines for Euthanasia outline which methods are appropriate for various species and situations. In a research setting, the IACUC reviews and approves the euthanasia method as part of the approved protocol, ensuring that the approach aligns with humane standards and applicable regulations. Practical factors like cost or ease do not determine the humane choice, and while input from the supervisor or attending veterinarian may occur, formal approval for euthanasia methods is grounded in IACUC oversight.