Nerve and Joint Blocks

Question 1

What local anesthetics can you use for block tests?

Answer 1

2% carbocaine/lidocaine

Question 2

Why is 0.5% bupivicaine not used for diagnostics?

Answer 2

Lasts 5-6hr

Question 3

What volume should you use for perineural anesthesia?

Answer 3

1.5mL

Question 4

What part of the site is the last to become numb and first to regain sensation?

Answer 4

Skin

Question 5

What nerves does the palmar digital nerve block block?

Answer 5

Palmar digital nerves

Question 6

What does an abaxial sesamoid nerve block block?

Answer 6

Palmar digital nerves

Question 7

What does a low 4-point nerve block block?

Answer 7

Lat/med palmar nerves

Question 8

Entire foot, coffin joint, deep DDFT, sole, and navicular apparatus all blocked by this nerve block

Answer 8

Palmar digital nerve

Question 9

Where do you inject for a palmar digital nerve block?

Answer 9

Groove between flexors and ergot while limb is elevated

Question 10

What might make an lock less effective?

Answer 10

Infection and change in pH

Question 11

Where do you inject for an abaxial nerve block?

Answer 11

Abaxial border of each proximal sesamoid bone

Question 12

How much anesthetic do you inject for a low 4 point nerve block?

Answer 12

3mL/palmar carpal nerve

Question 13

What length needle should you use for a low 4 point nerve block?

Answer 13

5/8” for 4 sites

1.5” for 2 sites

Question 14

Which block anesthetizes everything from the fetlock distally?

Answer 14

Low 4 point nerve block

Question 15

Which block anesthetizes the origin of the suspensory ligament?

Answer 15

Lateral palmar nerve block

Question 16

What block is inserted below the carpus in a groove between the suspensory and DDFT?

Answer 16

High 4 point nerve block

Question 17

How much anesthetic do you inject for a high 4 point nerve block?

Answer 17

5mL med/lat

Question 18

Anesthetizes suspensory ligament, some flexor tendons, some MC3/4

Answer 18

High 4 point block

Question 19

For intra-articular anesthesia, inject volume of anesthetic should be _______ than volume of synovial fluid collected

Answer 19

More than

Question 20

How many radiographic views need to be done to assess for lameness?

Answer 20

Minimum 4 (2 oblique, 1 lateral, 1 DP)

Question 21

What modality is the only one that provides real time evaluation of both soft tissue and some bone?

Answer 21

US

Question 22

What is the purpose of a stand-off gelatin pad?

Answer 22

See superficial structures w/US

Question 23

Indicated when lameness is localized but not seen w/rads or US, multiple limb lameness, intermittent lameness, or upper limb/pelvic lameness

Answer 23

Nuclear scintigraphy

Question 24

What is the half life of T99?

Answer 24

6.5hr

Question 25

How long does the vascular phase of T99 last?

Answer 25

About 2 minutes

Question 26

Can diagnose remodeling changes of a bone

Answer 26

Nuclear scintigraphy

Question 27

How do you use local anesthesia to localize a lameness?

Answer 27

Begin distally and work proximally

Question 28

What is the modality of choice for imaging bone?

Answer 28

CT

Question 29

Used for evaluation of soft tissues not accessible w/US like foot lesions

Answer 29

MRI

Question 30

Can be diagnostic as well as therapeutic

Answer 30

Arthroscopy

Question 31

Wireless, body-mounted inertial sensors can ID and record micromotion of the patient

Answer 31

Equinosis Q w/Lameness Locator

Question 32

What does Equinosis Q measure?

Answer 32

Peak vertical force of the limb