Anaesthesia - EQUINE

Question 1

what is a recommended field anaesthesia protocol?

Answer 1

catheter
premed= ACP
sedation = a-2
induction = thiopental (quick, smooth)
analgesia = ketamine

Question 2

to give LA what size and gauge needle is required?

Answer 2

25G, 16mm with 2ml LA

Question 3

to desensitise the ocular area there are 4 approaches

Answer 3

1. supraorb
2. infratrochlear
3. zygomatic
4. lacrimal

Question 4

to remove the motor function of the globe there is only one technique

Answer 4

auriculopalpebral

Question 5

to perform an enucleation what LA techn would you need

Answer 5

retrobulbar to desensitise CN II, III, IV, V, VI. when correct the cornea should protruse a little. for this you need a 19G 90mm SPINAL needle (its deep)

Question 6

to perform dental procedures, LA are useful to desensitise the trigeminal mand and max

Answer 6

mand = mental and mandibular
max = infraorbital and maxillary

Question 7

what properties must drugs used for epidurals have

Answer 7

no preservatives

opioid or LA or A-2

Question 8

name and breifly descr the 3 epidural methods

Answer 8

1. intercoccygeal = 1st space
2. lumbosacral = can use catheter.
3. paravertebral = flank sx. Cd to last rb –> D midline (L3)

Question 9

what mehtod is often employed to identify when the epidural space has been accessed

Answer 9

hanging drop test

• water in needle hub
• insert, when sucked in = neg p of epidural space

Question 10

how do you access the success of a nerve block?

Answer 10

skin temp should be lower
sweating
no reaction to pain stim