Greater Miami Valley EMS Council (GMVEMSC) Protocol Exam 2025 – 400 Free Practice Questions to Pass the Exam

In patients suspected of cerebral herniation, the treatment approach focuses on managing elevated intracranial pressure (ICP) and ensuring adequate cerebral perfusion. The correct choice involves ventilating the patient at a rapid rate to lower the end-tidal CO2 (ETCO2) to around 30 mmHg. This is critical because hypercapnia (elevated CO2 levels) can lead to vasodilation of cerebral vessels, further increasing ICP.

By ventilating at 20 times per minute to achieve an ETCO2 of 30 mmHg, you induce a state of hyperventilation, which helps to cause cerebral vasoconstriction, thereby reducing blood flow to the brain and lowering ICP. This is a targeted method to mitigate the effects of herniation and stabilize the patient’s condition until further treatment can be provided.

In contrast, other options do not appropriately address the need for increased ventilation rates to lower CO2 effectively in cases of cerebral herniation. Maintaining an ETCO2 of 40 mmHg, as suggested in one of the incorrect choices, does not provide the rapid decrease in ICP that is required in a herniation scenario. Focusing on minimizing tidal volume or ventilating at a rate of 10