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    • #488903

      Hello, as I’ve reviewed modules and questions, I noticed a discrepancy in ICP values between modules – module 4 for brain injuries lists normal ICP as 0-10 mmHg and the values in module 14 lab values chart say 5-15 mmHg is normal. Which one is accurate? Thank you!

    • #488905

      Hi Megan! Thanks for this question! Normal values for ICP vary slightly depending on the reference. Generally, values less than 15 mmHg are considered normal. Values greater than 20-25 mmHg usually require treatment. On the NCS exam, they likely won’t ask questions requiring you to determine next steps on the gray areas (10-20 mmHg).

      Here are a few values from the literature:
      – Supine adult [1]: 7-15 mmHg
      – Standing adult [1]: -10 mmHg
      – Normal values in adults and older children [2]: <10-15 mmHg
      - Mild intracranial hypertension [2]: 20-30 mmHg
      - Severe, life-threatening hypertension [2]: >40 mmHg

      [1] Rangel-Castillo L, Gopinath S, Robertson CS. Management of intracranial hypertension. Neurol Clin. 2008;26(2):521-541.
      [2] Haider MN, Leddy JJ, Hinds AL, et al. Intra-cranial pressure changes after mild traumatic brain injury: a systematic review. Brain Inj. 2018;32(7):809-815.

    • #488919

      Thank you for the clarification!

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