To Prepare a Patient Who Is to Have a Lumbar

To prepare a patient who is to have a lumbar puncture performed for analysis of cerebrospinal fluid,what should the nurse inform him about?

A) He will be given a mild sedative to help control muscle spasms.
B) He should cough as soon as he feels the needle enter the spinal canal.
C) He may be required to lie flat on his back for 24 hours following the test.
D) He will be positioned on his side with his knees drawn to the chest and his head flexed to the chest.