Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
23 Cards in this Set
- Front
- Back
Indications for axillary blocks?
|
Surgical procedures distal to elbow
Forearm Hand and digits |
|
Axillary blocks are performed for surgical procedures of:
a. upper arm distal to acromioclavicular joint b. forearm c. hand and digits d. both b & c |
d. both b & c
|
|
2. All of the following are axillary block techniques except:
a. subcutaneous median nerve b. transarterial c. paresthesia d. peripheral nerve stimulator |
b. subcutaneous median nerve
|
|
3. To assess the efficacy of an axillary block of the radial nerve one should check the sensation:
a. over the dorsoradial surface of the distal forearm b. at the webspace between the thumb and first finger c. on the palmar surface of the thumb d. over the dorsal surface of the tip of the small finger |
b. at the webspace between the thumb and first finger
|
|
4. Complications of an axillary block include:
a. hematoma b. intravascular injection ( systemic toxicity) c. post-op neuropathies d. failure to block musculocutaneous nerve e. all of the above |
e. all of the above
|
|
What are the three techniques used for axillary block?
|
1.Transarterial (transvascular) Technique
2 Paresthesia Technique 3. Peripheral Nerve Stimulator Technique |
|
Complications of axillary block?
|
Intravascular injection (systemic toxicities)
Hematoma Post-op neuropathies Failure to block musculocutaneous nerve |
|
Motor response to Musculotaneous nerve stimulation?
|
Biceps Flex
|
|
Motor response to Median nerve stimulation?
|
1. Wrist flexion
2. Fingers flexion 3. Thumb opposition |
|
Motor response to Ulnar nerve stimulation?
|
1. Ulnar deviation of the wrist
2. Metacarpo-pharangeal flexion 3. thumb adduction |
|
Motor response to Radial nerve stimulation?
|
1. wrist extension
2. Metacarpo-phalangeal extension 3. thumb abduction |
|
Root nerves that make up the brachial plexus?
|
C4- C5- C6- C7-C8- T1
|
|
Describe the Breakdown of the nerve roots to branches?
|
Roots
Trunks Divisions Cords Branches (Robert Taylor Drinks Cold Beer) |
|
What does the Axillary nerve innervate?
|
Deltoid and teres Minor
|
|
What does the Musculocutaneous nerve innervate?
|
sends fibers to the biceps brachii and brachialis
|
|
What does the median nerve innervate?
|
Brances to the flexor muscles of the arm, also travels thru the antecubital.
|
|
What does the Ulnar nerve innervate?
|
supplies the flexor carpi ulnaris and part of the flexor digitorum profundus
|
|
What does the Radial nerve innervate?
|
extensor muscles of the arm.
|
|
What is the landmarks for the Interscalene Block?
|
Groove between anterior and medial scalene muscles at the level of C6 (cricoid cartilage)
(Watch of forearm twitch or deltoid twitch) |
|
What landmark is used for the Infraclavicular block ?
|
Coracoid Process of the Humerous 2cm medial and 2cm caudad
(less risk of pneumothorax) |
|
When performing an axillary block what nerves are commonly missed and must be blocked separetly?
|
The axillary and the musculocutaneous nerves.
|
|
What landmark is used with the axillary block?
|
Axillary artery
|
|
How are the nerves arranged around the axillary artery?
|
(face of a clock-approx location)
0200: Median nerve 0400: Ulnar nerve 0800: Radial n. 1000: Musculcutaneous n. |