A nurse is teaching a client about the nervous system.
Which of the following neurotransmitters should the nurse include in the teaching as having an inhibitory action?

Choice A rationale
Maintaining the head of the bed between 30 and 45 degrees is a common intervention for a patient at risk of cerebral aneurysm rupture. This position can help reduce intracranial pressure and promote venous drainage from the brain.
Choice B rationale
Administering hypotonic intravenous solutions is not typically recommended for patients at risk of cerebral aneurysm rupture. Hypotonic solutions can lead to cerebral edema, which can increase intracranial pressure and potentially contribute to aneurysm rupture.
Choice C rationale
Keeping lights at a medium level in the evening is not a specific intervention for patients at risk of cerebral aneurysm rupture. While maintaining a comfortable and restful environment is important, there’s no evidence to suggest that the level of lighting has a direct impact on the risk of aneurysm rupture.
Choice D rationale
Repositioning the patient every shift is a standard nursing intervention to prevent pressure ulcers and promote comfort. However, it is not a specific intervention for patients at risk of cerebral aneurysm rupture.

Choice A rationale
Reducing the temperature in the room is not typically a treatment for brain herniation. While it’s important to maintain a comfortable environment for the patient, there’s no evidence to suggest that room temperature has a direct impact on the progression or treatment of brain herniation.
Choice B rationale

Hyperventilating the patient is a possible treatment for brain herniation. Hyperventilation causes vasoconstriction, which can decrease cerebral blood flow and intracranial pressure, potentially relieving the pressure caused by the herniation.
Choice C rationale
Lowering blood pressure is not typically a treatment for brain herniation. While maintaining a stable blood pressure is important in all patients, aggressively lowering blood pressure could potentially decrease cerebral perfusion and worsen the patient’s condition.
Choice D rationale
Decreasing sedation is not typically a treatment for brain herniation. In fact, sedatives might be used to reduce metabolic demands and control agitation in a patient with brain herniation.