Basic Neurological Exam of Upper Limbs Flashcards
What are the main steps in an exam of the upper limbs?
Prepare patient Hand hygiene Inspection Tone Power Deep tendon reflexes Coordination Sensory exam Complete exam
What is the adequate exposure for this exam?
Singlet or t-shirt off
How do you prepare the patient?
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
How do you inspect the patient?
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
How do you measure tone?
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
How do you measure tone if resistance is detected?
Make moves unpredictable
How do you measure power?
Functional testing Compare both sides Start at shoulder Progress distally from joint to joint Clear and explicit instructions
How do you test for mild upper limb weakness?
Ask patient to close eyes
Hold arms straight out with palms facing upwards for a minute
What do you see in the test for mild upper limb weakness if there is reduced strength?
Arms start to pronate and drift down = pronator drift
What kind of patient is the mild upper limb weakness test good for?
Stroke patients
What may affect how a patient performs in a power exam?
Motivation
Pain
Changes in tone
Your own muscle strength
Which nerve roots control shoulder abduction?
C4, C5, C6
How do you test the power of shoulder abduction?
Ask patient to flex arms at elbows
Abduct shoulders to 90 degrees
Patient maintains position as you push down on elbows
Which nerve roots control elbow flexion?
C5, C6
How do you test the power of elbow flexion?
Patient flexes elbow
Apply counter resistance to forearm
Which nerve roots control elbow extension?
C7, C8
How do you test the power of elbow extension?
Patient extends elbow
Apply counter resistance to forearm
Which nerve roots control wrist extension?
C6, C7
How do you test the power of wrist extension?
Patient makes fist
Place your fist against back of patient’s hand
Patient tries to bend back wrist whilst you apply counter resistance
Which nerve roots control wrist flexion?
C6, C7, C8