Basic Neurological Exam of Upper Limbs Flashcards

1
Q

What are the main steps in an exam of the upper limbs?

A
Prepare patient
Hand hygiene
Inspection
Tone
Power
Deep tendon reflexes
Coordination
Sensory exam
Complete exam
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2
Q

What is the adequate exposure for this exam?

A

Singlet or t-shirt off

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3
Q

How do you prepare the patient?

A
Explain reason for exam
In general what it'll involve
Ask about pain in arms
Advise them to inform you if exam uncomfortable/painful
Ensure arms adequately exposed
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4
Q

How do you inspect the patient?

A
Ask patients to rest arms on pillow
Inspect upper limbs
Inspect cervical spine
- Scars
- Deformity
Posture of limbs
Muscle bulk
- Note particular pattern if any muscle wasting
Fasciculations
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5
Q

How do you measure tone?

A

Assess passive resistance against movement
Make sure patient is relaxed
Flex and extend elbow
Flex and extend wrist
Rapid supination and pronation of forearm whilst supporting elbow

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6
Q

How do you measure tone if resistance is detected?

A

Make moves unpredictable

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7
Q

How do you measure power?

A
Functional testing
Compare both sides
Start at shoulder
Progress distally from joint to joint
Clear and explicit instructions
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8
Q

How do you test for mild upper limb weakness?

A

Ask patient to close eyes

Hold arms straight out with palms facing upwards for a minute

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9
Q

What do you see in the test for mild upper limb weakness if there is reduced strength?

A

Arms start to pronate and drift down = pronator drift

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10
Q

What kind of patient is the mild upper limb weakness test good for?

A

Stroke patients

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11
Q

What may affect how a patient performs in a power exam?

A

Motivation
Pain
Changes in tone
Your own muscle strength

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12
Q

Which nerve roots control shoulder abduction?

A

C4, C5, C6

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13
Q

How do you test the power of shoulder abduction?

A

Ask patient to flex arms at elbows
Abduct shoulders to 90 degrees
Patient maintains position as you push down on elbows

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14
Q

Which nerve roots control elbow flexion?

A

C5, C6

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15
Q

How do you test the power of elbow flexion?

A

Patient flexes elbow

Apply counter resistance to forearm

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16
Q

Which nerve roots control elbow extension?

A

C7, C8

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17
Q

How do you test the power of elbow extension?

A

Patient extends elbow

Apply counter resistance to forearm

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18
Q

Which nerve roots control wrist extension?

A

C6, C7

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19
Q

How do you test the power of wrist extension?

A

Patient makes fist
Place your fist against back of patient’s hand
Patient tries to bend back wrist whilst you apply counter resistance

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20
Q

Which nerve roots control wrist flexion?

A

C6, C7, C8

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21
Q

How do you test the power of wrist flexion?

A

Patient makes fist

Flex wrist as you apply counter resistance

22
Q

Which nerve roots control finger extension?

A

C7, C8

23
Q

How do you test the power of finger extension?

A

Patient holds fingers out straight
Place your hands against back of patient’s fingers distal to metacarpophalangeal joints
Patient keeps fingers straight as you apply counter resistance

24
Q

Which nerve roots control finger flexion?

A

C7, C8

25
Q

How do you test the power of finger flexion?

A

Patient curls fingers up

Keep them flexed while you apply counter resistance

26
Q

Which nerve roots control finger abduction?

A

C8, T1

27
Q

How do you test the power of finger abduction?

A

Patient spreads fingers

Resist as you squeeze them together

28
Q

What else does testing the power of finger abduction measure?

A

Ulnar nerve function

29
Q

How do you test the power of finger adduction?

A

Patient holds folded piece of paper between fingers

You try to pull it away

30
Q

What else does testing the power of finger adduction measure?

A

Ulnar nerve function

31
Q

Which nerve roots control finger adduction?

A

T1

32
Q

Which nerve roots control thumb abduction?

A

T1

33
Q

How do you test the power of thumb abduction?

A

Abduct thumb up to touch your finger

Apply counter pressure

34
Q

In which direction is thumb abduction?

A

Same direction as finger flexion

35
Q

What else does testing the power of thumb abduction measure?

A

Median nerve function

36
Q

Where are the deep tendon reflexes in the upper limb?

A

Biceps jerk
Brachioradialis jerk
Triceps jerk
Finger jerk

37
Q

What must the patient be to test deep tendon reflexes?

A

Relaxed

38
Q

What reinforcement can be used to test deep tendon reflexes in the upper limb?

A

Clench teeth

39
Q

How do you test the biceps jerk?

A
Patient sits facing you
Hands on lap
Place your thumb/forefinger over biceps tendon at elbow
Tap it with your tendon hammer
Look for flexion at elbow
40
Q

Which nerve roots are involved in the biceps jerk?

A

C5, C6

41
Q

How do you test the brachioradialis jerk?

A

Tap over lower end of radius

Look for flexion of elbow and/or supination

42
Q

Which nerve roots are involved in the brachioradialis jerk?

A

C5, C6

43
Q

How do you test the triceps jerk?

A

Tap over triceps tendon

Look for brisk extension of elbow

44
Q

Which nerve roots are involved in the triceps jerk?

A

C7, C8

45
Q

How do you test for the finger jerk?

A

Lift patient’s fingers passively against your own

Tap your fingers

46
Q

Which nerve roots are involved in the finger jerk?

A

C8

47
Q

How do you test for coordination in the upper limb?

A

Finger-nose test

48
Q

How do you perform the finger-nose test?

A

Ask patient to touch tip of their nose with their index finger >
Stretch out to nearly full extension of shoulder and elbow >
Touch your index finger repetitively
Perform for both arms

49
Q

What is dydiadochokinesis?

A

Clumsiness of pronating and supinating one hand on the other

50
Q

What sensations are tested in the upper limb?

A

Pain with toothpick
Light touch with cotton wool
Vibration sense with tuning fork interphalangeal joint of thumb
Proprioception of thumb

51
Q

What are the dermatome testing areas of the upper limb?

A
C4 = shoulder
C5 = "military badge" area of upper arm
C6 = tip of thumb
C7 = tip of middle finger
C8 = tip of little finger
T1 = upper inner arm
52
Q

What is the last step in a neurological exam of the upper limb?

A

Close exam