[mononeuropathies] Flashcards Preview

NEUROLOGY > [mononeuropathies] > Flashcards

Flashcards in [mononeuropathies] Deck (46)
1

[mono]: Causes of mononeuropathies are usually local e.g. (2)

trauma
entrapment

2

[mono]: Explain mononeuritis multiplex

=>2 peripheral nerves involved

3

[mono]: Mononeuritis multiplex is suggestive of a ... cause

Systemic

4

[mono]: The mneumonic for systemic causes of mononeuritis multiplex

WARDS PLC

5

[mono]: WARDS PLC?

Wegeners
AIDS/amyloid
Rheumatoid
DM
Sarcoidosis
pAN
Leprosy
Carcinoma

6

[mono]: what investigative technique can help define the anatomical site of the lesion

Electromyography

7

[mono]: What muscles does the median nerve innervate

LOAF

Lumbricals
Opponens pollicis
Abductor pollicis brevis
Flexor Pollicis brevis

8

[mono]: Damage to median nerve at wrist would result in what sensory loss

Radial 3.5 fingers and palm

9

[mono]: What is a proximal branch of the median nerve

Anterior interosseous nerve

10

[mono]: lesion of anterior interosseous nerve results has what effect on sensation

none - no sensory branches

11

[mono]: what motor signs would be seen in anterior interosseous nerve lesion (2)

weak flexion of
distal phalanx of thumb and index finger

12

[mono]: what muscle does anterior interosseous nerve innervate (2)

flexor pollicis longus
radial side of flexor digitorum profundus

13

[mono]: Lesion of median at elbow would show

combined median and anterior interosseous nerve signs

14

[mono]: what nerve roots does the median nerve arise from

C6 - T1

15

[mono]: what is Wegeners disease

Granulomatosis with polyangiitis

16

[mono]: Ulnar nerve is most exposed at the

elbow

17

[mono]: ulnar nerve lesion would result in wasting of

Hypothenar eminence

18

[mono]: ulnar nerve supplies sensation to

medial 1.5 fingers and ulnar side of hand

19

[mono]: palmar and dorsal interossei are supplied by

ulnar nerve

20

[mono]: The medial 2 lumbricals are supplied by

ulnar nerve

21

[mono]: lumbricals flex which joint

MCPs

22

[mono]: damage to ulnar at the elbow produces the ulnar paradox. Why is it called paradoxical

you expect a greater injury to produce a bigger 'claw' but it doesnt

23

[mono]: why does damage to the ulnar at the elbow cause lless flexion

flexor digitorum is damaged. therefore less pronounced flexion of DIP and less promounced claw hand

24

[mono]: why does lesion to ulnar at wrist cause a significant claw hand

flexor digitorum is intact therefore flexion occurs

25

[mono]: summarise ulnar claw (2)

un opposed extension of MCP
Un oppossed flexion of IP

26

[mono]: Hand of benediction ?

Damage to median nerve
inability to flex lateral MCP/IPs

27

[mono]: which muscle is involved in hand of benediction

flexor digitorum profundus

28

[mono]: what nerve roots is the ulnar nerve

C7 to T1

29

[mono]: radial nerve damage results in what characteristic sign

Wrist drop

30

[mono]: where do you check radial nerve sensation

anatomical snuff-box

31

[mono]: which nerves innervate the diaphragm

C3 C4 C5

32

[mono]: raised diaphragm on CXR may indicate

phrenic nerve palsy

33

[mono]: anterolateral thigh burning pain is called

Meralgia paraesthetica (lateral cutaneous nerve of the thigh)

34

[mono]: which nerve roots are affected in meralgia paresthetica

L2-L3

35

[mono]: lateral cutaneous nerve of the thigh becomes trapped under the .... and this is meralgia paraesthetica

inguinal ligament

36

[mono]: What nerve roots is the sciatic nerve

L3 - S3

37

[mono]: foot drop indicates ... nerve damage

Sciatic

38

[mono]: where is the common peroneael nerve most frequently damaged

as it winds around fibular head (sitting x-legged)

39

[mono]: common peroneal damage results in sensory loss where

dorsum of foot

40

[mono]: eversion and dorsiflex are innervated by what nerve

common peroneal

41

[mono]: Tibial nerve damage results in an inability to perform what movements (2)

plantarflexion (stand on tiptoes)
inversion

42

[mono]: Carpal tunnel syndrome nerve?

Median nerve

43

[mono]: Carpal tunnel syndrome: what relieves the pain?

"wake and shake"
(pain worse at night. Waking and shaking the arm relieves)

44

[mono]: Non surgical Tx for carpal tunnel syndrome

splinting
local steroid injections

45

[mono]: surgical treatment for carpal tunnel

decompression surgery

46

[mono]: what 2 tests can be performed to check for carpal tunnel (both unreliable!)

Phalens
Tinels