This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Unknown
Post lumbar puncture headache is minimized by all except: 
Select and explain. 
A. Keep stylet and remove needle, B. Atraumatic needle, C. Small diameter needle, D. Hydration by crystalloid infusion
A: Keep stylet and remove needle
Answer: A: Keep stylet and remove needle 
Explanation: (Refer: Lee’s, Clinical Anaesthesia, 12th edition, pg no:685-687)
Post-Lumbar Puncture Headache
Etiology
CSF leak leading to decreased ICP
Breach or scratching of dura due to:

Lumbar puncture
Myelogram
Spinal Anaesthesia
Wet epidural tap
Uncomplicated epidural due to scratching of dura

Factors affecting post lumbar puncture headache