OCC OCC Neurovascular Assessment & Monitoring 2

Question 1

A patient with a recently applied long leg cast reports numbness of the little toe and the lateral aspect of the foot. Which nerve is most likely compressed?

Accepted Answer

Sural nerve

Answer

The sural nerve provides sensation to the lateral foot and little toe, and is vulnerable to compression along the lateral ankle area.

Question 2

How frequently should neurovascular checks be performed during the first 24 hours after application of a new cast?

Accepted Answer

Every 1–2 hours

Answer

Neurovascular checks every 1–2 hours during the first 24 hours are the standard of care to detect early signs of vascular compromise or compartment syndrome.

Question 3

The posterior tibial pulse in a patient with a short leg cast is best assessed by palpating:

Accepted Answer

Behind the medial malleolus

Answer

The posterior tibial artery passes posterior to the medial malleolus and is palpated there to assess distal perfusion of the foot.

Question 4

Testing motor function of the ulnar nerve is best accomplished by asking the patient to:

Accepted Answer

Abduct the fingers (spread them apart)

Answer

Finger abduction is performed by the dorsal interossei, which are innervated by the ulnar nerve, making this the primary motor test for ulnar integrity.

Question 5

A patient with a short arm cast reports numbness and tingling in the little finger and the medial half of the ring finger. Which nerve is most likely compromised?

Accepted Answer

Ulnar nerve

Answer

The ulnar nerve provides sensory innervation to the little finger and the medial half of the ring finger on both palmar and dorsal surfaces.

(OCC) Orthopedic Casting Certification Practice Test

(OCC) Orthopedic Casting Certification Practice Test

OCC OCC Neurovascular Assessment & Monitoring 2