Neurotrauma Quiz: April 2016^[*]

Q1. Which of the following is not true about SCI?

• C5 is the most common level of tetraplegia

• D10 is the most common level of paraplegia

• Incomplete paraplegia is the most common injury

• Most common cause of SCI is sports related

Q2. Brown–Sequard syndrome is described as?

• Asymmetric injury with ipsilateral loss of motor function and sensation and contralateral loss of pain and temperature

• Symmetrical injury with loss of motor function bilaterally

• Asymmetric injury with ipsilateral loss of pain and temperature and contralateral loss of motor function and sensation

• Loss of awareness, but preserved motor, pain, temperature, and light touch

Q3. Both the dural sac and the subarachnoid space end at which vertebral level?

• L4

• S2

• S1

• S4

Q4. What is true about the intervertebral disk?

• Is found between all adjacent vertebrae

• Adds ∼1/4th to entire length of vertebral column

• Contains a compressible liquid center

• Is perforated by the needle when performing a spinal tap

Q5. What is true about the denticulate ligament?

• Is a modification of pia mater

• Is found between all dorsal and ventral roots

• Attaches to the dural sac continuously

• Has its terminal attachment at S2

Q6. Which structure does not contain efferent autonomic nerve fibers?

• Dorsal ramus of C4

• Dorsal root of T6

• Ventral root of T3

• Ventral ramus of L2

Q7. What is the most common cause of spinal cord injuries?

• Diving

• Contact sports

• Motor vehicle accidents

• Blunt trauma

Q8. Which vertebra is most difficult to see but 20 to 30% of injuries occur there?

• C1

• C2

• C6

• C7

Q9. For anterior spinal cord syndrome what function(s) remain?

• Vibratory sense

• Pain

• Temperature

• Motor function

Q10. Posterior cord syndrome is rare with patient presenting with...

• Heightened vibratory sensation

• Weakness in the lower extremities

• Burning paresthesia's involving the neck, arms, and torso

• Weakness in the upper extremities

Q11. Immediately after a spinal cord injury hemorrhages occur where?

• In the white matter

• In the gray matter

• Usually in the anterior spinal artery

• Usually in the posterior spinal arteries

Q12. After a spinal cord injury, a zone of hemorrhage, edema, and necrosis spreads. This damage ultimately involves the diameter of the whole spinal cord within what time frame?

• 1 to 2 hours

• 12 to 14 hours

• 6 to 24 hours

• 48 hours

Q13. Once the chronic phase hit for spinal trauma how long does it take for the reflexes to return?

• 2 weeks

• 3 weeks

• 4 weeks

• 5 weeks

Q14. How long does it take for maximum recovery for a spinal cord injury?

• 3 months

• 4 months

• 6 months

• 1 year

Q15. What is true about central cord syndrome?

• Damage to anterior portion of cord

• Hyperextension

• Wide step gait

• Flexion injury

Key to Neurotrauma Quiz: April 2016

Question no.	Question	Key
1.	Which of the following is not true about SCI?	C
2.	Brown–Sequard syndrome is described as?	A
3.	Both the dural sac and the subarachnoid space end at which vertebral level?	B
4.	What is true about the intervertebral disk?	B
5.	What is true about the denticulate ligament?	A
6.	Which structure does not contain efferent autonomic nerve fibers?	B
7.	What is the most common cause of spinal cord injuries?	C
8.	Which vertebra is most difficult to see but 20 to 30% of injuries occur there?	D
9.	For anterior spinal cord syndrome what function(s) remain?	A
10.	Posterior cord syndrome is rare with patient presenting with...	C
11.	Immediately after a spinal cord injury hemorrhages occur where?	B
12.	After a spinal cord injury, a zone of hemorrhage, edema, and necrosis spreads. This damage ultimately involves the diameter of the whole spinal cord within what time frame?	C
13.	Once the chronic phase hit for spinal trauma how long does it take for the reflexes to return?	C
14.	How long does it take for maximum recovery for a spinal cord injury?	C
15.	What is true about central cord syndrome	B

^* The key to this Neurotrauma Quiz can be found in online version of the issue (April 2016).