ALAT ALAT Research Procedures and Techniques Questions and Answers

Question 1

Which route of administration is used when injecting a substance directly into the abdominal cavity of a rodent?

Accepted Answer

Intraperitoneal (IP)

Answer

Intraperitoneal (IP) injection delivers substances directly into the abdominal cavity and is a common route in rodent research.

Question 2

What is the maximum recommended volume for a single subcutaneous injection in a mouse?

Accepted Answer

0.5 mL

Answer

The maximum recommended subcutaneous injection volume for a mouse is 0.5 mL to avoid tissue damage.

Question 3

When performing a blood collection from the tail vein of a rat, which technique is commonly used to dilate the vessel?

Accepted Answer

Warming the tail in warm water

Answer

Warming the tail in warm water causes vasodilation, making the tail vein easier to access for blood collection.

Question 4

What is the purpose of a gavage needle used in laboratory animal procedures?

Accepted Answer

To deliver substances directly into the stomach via the esophagus

Answer

A gavage needle is a blunt-tipped curved needle used to deliver compounds directly into the stomach via oral gavage.

Question 5

Which of the following is a proper technique when performing intramuscular injections in rabbits?

Accepted Answer

Injecting into the epaxial muscles of the lumbar region

Answer

The epaxial (lumbar) muscles are the preferred IM injection site in rabbits due to their size and accessibility.

ALAT - Assistant Laboratory Animal Technician Practice Test