Question 238 · LEK · Increased intracranial pressure
Which of the following is an absolute contraindication to lumbar puncture?
- A. suspicion of subarachnoid hemorrhage.
- B. cerebral edema with a risk of brain herniation and CNS tumors (particularly those located in the posterior cranial fossa).
- C. number of platelets under 100,000/µL.
- D. scoliosis in the lumbar region.
- E. absent papilledema.
Hint
The main danger of lumbar puncture is a pressure gradient that can push brain tissue through the foramen magnum.
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