lumbar puncture
spinal puncture
spinal tap

One day he was told to watch someone get a spinal tap.

The best way to rule it out was a spinal tap.

She also showed them how procedures like spinal taps work.

He gives her a spinal tap and returns back to help with the investigation.

Order a spinal tap to rule out infection around the brain.

Then let him be Wolf-he wouldn't stay around for the spinal tap, he would go from there.

For one thing, it's just about impossible to do a spinal tap on a dead body.

Spinal Tap succeeded partly because they knew how to follow the rules.

"With an elevated white blood count and changes in mental status, I have no choice but to do the spinal tap."

Often the doctor will order an X-ray and even a spinal tap to rule out the source of infection.