MRS Tests Flashcards
Middle deltoid muscle test
Nerve root: C5; Peripheral nerve: axillary
Biceps muscle test
Nerve root: C6; Peripheral nerve: musculocutaneous
Triceps muscle test
Nerve root: C7; Peripheral nerve: radial
Wrist extensors muscle test
Nerve root: C6; Peripheral nerve: radial
Wrist flexors muscle test
Nerve root: C7; Peripheral nerve: median/ulnar
Finger extensors muscle test
Nerve root: C7; Peripheral nerve: ulnar/median
Finger flexors muscle test
Nerve root: C8; Peripheral nerve: ulnar/median
Finger add/ab muscle test
Nerve root: T1; Peripheral nerve: ulnar
Muscles for C6
biceps; wrist extensors
Muscles for C7
triceps; wrist flexors; finger extensors
C5 DRT
biceps
C6 DRT
brachioradialis
C7 DRT
triceps
C5 sensory test
Over deltoid tuberosity
C6 sensory test
thumb
C7 sensory test
Middle finger
C8 sensory test
pinky
T1 sensory test
Medial forearm at level of elbow
T2 sensory test
Medial upper arm (axilla region)
interpreting muscle problems (upper vs lower nerve root)
upper: spastic
lower: weakness
interpreting reflex problems (upper vs lower nerve root)
upper: hyperreflexive
lower: hyporelexive
interpreting sensation problems (upper vs lower nerve root)
no set rule; problem if sharp is not detected
