The patient was admitted with a head injury and an intracranial pressure (ICP)monitoring device was placed.The nurse knows to notify the practitioner if what type of wave start to appear on the monitor?

Question

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A waves are the most clinically significant of the three types.They usually occur in an already elevated baseline intracranial pressure (ICP)(>20 mm Hg)and are characterized by sharp increases in ICP of 30 to 69 mm Hg,which plateau for 2 to 20 minutes and then return to baseline.B waves appear to reflect fluctuations in cerebral blood.C waves are small,rhythmic waves that occur every 4 to 8 minutes at normal levels of ICP.They are related to normal fluctuations in respiration and systemic arterial pressure.

The Patient Was Admitted with a Head Injury and an Intracranial