Air Methods Critical Care Practice Exam 2025 – Comprehensive Study Guide

Question: 1 / 400

What is the normal range for intracranial pressure (ICP)?

0-10 mm Hg

0-15 mm Hg

The normal range for intracranial pressure (ICP) is typically recognized as being between 5 and 15 mm Hg, with some sources allowing for a higher threshold of 20 mm Hg in certain conditions. The choice of 0-15 mm Hg closely aligns with the general clinical understanding of normal ICP values. Maintaining this range is crucial as elevated ICP can indicate increased intracranial volume, which could lead to serious conditions such as herniation or neurovascular damage.

The significance of keeping ICP within this normal range relates directly to the delicate balance of brain metabolism, perfusion, and oxygenation. If ICP rises significantly above this range—which is indicated in other options—it can compromise cerebral blood flow and lead to neurological deficits. Thus, understanding the normal ICP values is essential for effective monitoring and management in critical care settings.

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20-25 mm Hg

15-20 mm Hg

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