When administering an intramuscular injection in the pelvic limb of a dog or cat, which nerve should be avoided?

When administering an intramuscular injection in the pelvic limb of a dog or cat, the sciatic nerve should be avoided because it is a large and major nerve that runs along the hind leg. If an injection is inadvertently given into or near the sciatic nerve, it can cause significant pain, muscle damage, or even permanent nerve damage. Additionally, hitting this nerve can lead to complications such as lameness or mobility issues for the animal.

Injections in the pelvic limb are typically given in the lateral aspect of the thigh, where the muscle mass is larger and the risk of nerve injury is minimized. Understanding the anatomy and pathways of major nerves, such as the sciatic, is crucial for veterinary professionals to ensure safe and effective administration of injections while minimizing the risk of adverse effects for the patient.