Self-assessment questions

IDevice Question Icon Question 1
The imaginary line connecting the posterior superior iliac crests crosses what spinal interspace?
  
L1-L2
L2-L3
L3-L4
L4-L5
L5-S1

IDevice Question Icon Question 2
Which of the following patients does not need a CT-scan prior to lumbar puncture?
  
A well patient with new onset right arm weakness
A known cancer patient with headache and new onset right arm weakness
An acute trauma patient with headache and bilateral leg weakness
A twelve year old boy with normal exam but fever and nuchal rigidity

IDevice Question Icon Question 3
If bony resistance is encountered while performing a lumbar puncture, bring the spinal needle back to the skin and direct it more towards the:
  
Right
Feet
Parallel plane of the back
Head