lower blocks

Question 1

what nerves make it to the ankle

Answer 1

saphenous, superficial peroneal, deep perineal, sural, posterior tibial

Question 2

3 main nerves of the lumbar plexus

Answer 2

lateral femoral cutaneous, obturator, femoral

Question 3

what does the lumbar plexus do

Answer 3

provides motor and sensory innervation to the anterior thigh and sensory innervation to medial aspect of lower extremity below the knee

Question 4

what does the sciatic nerve do

Answer 4

motor and sensory of vast majority of lower leg and foot

Question 5

what does the sciatic nerve branch into

Answer 5

tibial and common peroneal

Question 6

what provides sensory to lateral thigh

Answer 6

lateral femoral cutaneous

Question 7

what provides motor to sartorius and quads

Answer 7

femoral

Question 8

what provides sensory to anterior thigh

Answer 8

femoral

Question 9

inside of leg is what nerve

Answer 9

saphenous

Question 10

outside of leg is what nerve

Answer 10

CP

Question 11

what nerve innervates parietal peritoneum

Answer 11

ilioinguinal

Question 12

what innervates posterior sole of foot

Answer 12

sural

Question 13

hypoechoic

Answer 13

structure and substances through which sounds easily passes. appear dark or black on the untrasound screen.

Question 14

hyperechoic

Answer 14

structures reflecting more sound waves appear brighter, white on ultrasound

Question 15

linear probe

Answer 15

a high freq transducer that offers a high resolution picture with less tissue penetration

Question 16

curvilinear probe

Answer 16

a low frequency transducer that offers better tissue penetration with lower resolution, or poorer image quality. good for deeper structures

Question 17

in-plane needle alignment

Answer 17

in-plane needle alignment refers to aligning the needle with the long-axis of the transducer so that the entire shaft and tip of the needle are visible

Question 18

out of plane alignment

Answer 18

transducer and needle and perpendicular to each other. since only the needle tip is observed as a bright dot, it is sometimes difficult to accurately observe the needle during advancement. despite this it is an easier approach for PNB and central venous cannulation

Question 19

how many brachial plexus roots

Answer 19

5

Question 20

how many brachial plexus trunks

Answer 20

3 (anterior, middle, inferior)

Question 21

how many brachial plexus divisions

Answer 21

6 (3 anterior, 3 posterior)

Question 22

how many brachial plexus cords

Answer 22

3 - lateral, posterior, medial

Question 23

inter scalene block contraindications

Answer 23

local infection, severe coagulopathy, LA allergy, pt refusal.

Question 24

inter scalene block will also block what

Answer 24

ipsilateral phrenic nerve

Question 25

horners syndome happens with

Answer 25

inter scalene block

Question 26

what is horners syndrome symptoms

Answer 26

miosis, ptosis, anhydrosis

Question 27

which block can damage RLN

Answer 27

interscalene

Question 28

which block highest chance of pneumo

Answer 28

supraclavicular

Question 29

brachial plexus block is at the

Answer 29

divisions

Question 30

which block is associated with subclavian artery puncture

Answer 30

surpaclavicular block

Question 31

infraclavicular block is at the

Answer 31

cords

Question 32

infraclavicular block is for

Answer 32

surgical procedures at or distal to the elbow

Question 33

which nerve is spared with infraclavicular block

Answer 33

intercostobrachial nerve

Question 34

contraindications to axillary block

Answer 34

local infection, neuropathy, bleeding risk

Question 35

bier block tourniquet must be left inflated for at least

Answer 35

15-20 min