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?
Serotonin
GABA
Acetylcholine
Dopamine
Dopamine
The Correct Answer is B
Choice A rationale
Serotonin is indeed an inhibitory neurotransmitter. It helps regulate mood, appetite, and sleep among other things. However, its role in the nervous system is complex and it can also have excitatory effects depending on the specific receptors and neural pathways involved.
Choice B rationale
Gamma-aminobutyric acid (GABA) is the primary inhibitory neurotransmitter in the brain. It works by decreasing neuronal excitability, which helps to regulate muscle tone, among other functions.
Choice C rationale
Acetylcholine is primarily an excitatory neurotransmitter, although it can have inhibitory effects in certain parts of the nervous system. It plays a key role in muscle activation, learning, and memory.
Choice D rationale
Dopamine can act as both an inhibitory and an excitatory neurotransmitter, depending on the type of receptor it binds to and the specific neural pathway involved. It plays key roles in reward, motivation, and motor control.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A rationale
Trigeminal neuralgia is a chronic pain condition that affects the trigeminal nerve, which carries sensation from your face to your brain. It does not cause a sensation of tightness around the torso.
Choice B rationale
Lhermitte’s sign is a symptom of multiple sclerosis and other neurological conditions where a person feels an electric shock-like sensation running down the spine and into the limbs. It does not cause a sensation of tightness around the torso.
Choice C rationale
The sensation of tightness around the torso in a patient with multiple sclerosis is often referred to as the “MS hug”. It is caused by a lesion or an area of active inflammation within the spinal cord.
Choice D rationale
Paroxysmal spasms are a type of muscle spasm experienced by some people with multiple sclerosis. These spasms are usually painful and involve the muscles of the legs, but they do not cause a sensation of tightness around the torso.
Correct Answer is A
Explanation
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.
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