Assistant Laboratory Animal Technician (ALAT) Practice Exam

Cervical dislocation is acceptable only for mammals and rodents weighing less than what limit?

1. 100 g

2. 150 g

3. 200 g

4. 250 g

The correct answer is: 200 g

Cervical dislocation is a euthanasia technique that is considered acceptable under certain guidelines for small mammals and rodents. The limit set for the use of this method is typically 200 grams. This is due to concerns regarding the efficacy and humaneness of the technique when applied to larger animals, as there is a risk that the procedure may not be performed effectively or could result in unnecessary suffering if the animal exceeds this weight limit. The rationale for this threshold aligns with veterinary and animal welfare guidelines that prioritize ensuring that euthanasia methods are both humane and effective. Below this weight limit, cervical dislocation is believed to minimize pain and distress when done by trained personnel, as it can lead to rapid unconsciousness and death. In summary, the established cutoff for acceptable use of cervical dislocation helps balance the need for humane practices in animal care and research with effective euthanasia methods for small animals.