Sensory Screen Landmarks

What dermatome and peripheral nerve are tested at the AC joint?

C4, supraclavicular nerve

What dermatome and peripheral nerve are tested at the lateral antecubital fossa?

C5, lateral cutaneous nerve

What dermatome and peripheral nerve are tested at the dorsal thumb?

C6, radial nerve

What dermatome and peripheral nerve are tested at the palmar surface of the middle finger?

C7, median nerve

What dermatome and peripheral nerve are tested at the palmar surface of the 5th finger?

C8, ulnar nerve

What dermatome and peripheral nerve are tested at the medial antecubital fossa?

T1, medial cutaneous nerve

What 2 peripheral nerves are tested on either side of the antecubital fossa?

medial and lateral cutaneous nerves

What 3 spinal roots are tested on the hand?

C6, C7, C8

What dermatome and peripheral nerve are tested at the lateral upper thigh?

L2, lateral femoral cutaneous nerve

What dermatome and peripheral nerve are tested at the medial knee?

L3, anterior femoral cutaneous nerve

What dermatome and peripheral nerve are tested at the medial malleolus?

L4, saphenous nerve

What dermatome and peripheral nerve are tested at the dorsum of the 3rd MTP?

L5-S1, superficial peroneal nerve

What dermatome and peripheral nerve are tested at the web space between the 1st and 2nd MTP?

L5, deep peroneal

What dermatome and peripheral nerve are tested at the lateral heel?

S1, sural nerve

What dermatome and peripheral nerve are tested at the medial posterior knee/thigh?

S2, posterior femoral cutaneous nerve

What spinal roots are tested on the foot?

L5, S1

When screening light touch, you should move (distal/proximal) to (distal/proximal) when moving through the landmarks

proximal, distal

When an impaired sensation is found, how many times should you retest to determine a pattern?

5

What are the 3 cotton ball "don'ts" ?

swiping, lingering, pressing

(CNS/peripheral) sensory loss is typically in big patches, while (CNS/peripheral) sensory loss is typically more narrow and specific

CNS, peripheral

Where is a good location to test touch perception, as it is not often impaired?

face