Assistant Laboratory Animal Technician (ALAT) Practice Exam

In what circumstances should a static microisolation cage be used?

1. For animals requiring minimal handling

2. For larger animals that need more space

3. For species needing constant airflow

4. For animals being monitored closely

The correct answer is: For animals requiring minimal handling

A static microisolation cage is specifically designed for housing small animals in a way that minimizes the need for direct human interaction while still maintaining appropriate environmental conditions. These cages are utilized to reduce stress on the animals that can result from frequent handling, which is especially crucial for certain species that may become agitated or exhibit anxiety when handled. This design allows for a controlled environment where food, water, and waste can be managed without direct interference, making it ideal for situations where animals require minimal handling. In context, while larger animals typically require more space and might benefit from different types of housing that allow for more movement, static microisolation cages are primarily used for small animals. Species needing constant airflow would be better suited to alternative housing systems like ventilated cages that provide ongoing filtration and airflow. Lastly, animals being monitored closely usually require housing that permits more frequent access and observation, such as dynamic systems that facilitate ongoing assessment without compromising the animals' wellbeing. Hence, the use of static microisolation cages aligns with the specific need to minimize handling and stress for the animals housed within them.