Lab 1 - Nerve Blocking Techniques

Bupivacaine

Of bupivacaine and lidocaine, which is longer acting?

Lidocaine

Of bupivacaine and lidocaine, which has a faster onset time?

3-6 hours

What is the acting time for bupivacaine?

15-30mins

What is the onset time of bupivacaine?

1-2 hours

What is the acting time for lidocaine?

5mins

What is the onset time for lidocaine?

CN V Trigeminal nerve

When doing a dental nerve block, which of the facial nerves is being blocked?

Infraorbital nerve block

Which nerve block is being done here?

Do not insert the needle too far to cause damage to the eye

What is one consideration with doing this nerve block technique on cats and brachycephalic breeds?

Apical of maxillary 3rd PreMolar

What is the external landmark for the infraorbital nerve block?

Lower dental arcade

What area is desensitized by the mandibular nerve block?

Middle mental nerve block

Which nerve block is being done here?

Teeth and labial soft tissues rostral to the second premolar (3rd for cats)

What area is desensitized by the middle mental nerve block?

- CNS signs

- Cardiovascular dysfunction

- Trauma, facial nerve palsy

- Harner's syndrome

What are some possible complications associated with nerve blocks?

Median nerve, Palmar and dorsal branches of the ulnar nerve, Superficial branches of the radial nerve

Which nerves are desensitized in a nerve block for a declaw procedure?