When are lab tests indicated in the workup of pediatric headache?

Updated: Jan 02, 2019
  • Author: J Ivan Lopez, MD, FAAN, FAHS; Chief Editor: George I Jallo, MD  more...
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Answer

For headache associated with head trauma or a significant intracranial hemorrhage, the following laboratory studies may be indicated:

  • Complete blood count

  • Prothrombin time

  • Activated partial thromboplastin time

Lumbar puncture may reveal elevated opening pressure, leukocytosis, elevated protein, and low glucose. It is the most sensitive test in the diagnosis of subarachnoid hemorrhage.


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