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
Administering acetaminophen by mouth for pain control is important, but it is not the first intervention that should be implemented for a client who has had a traumatic fall. Pain management is crucial, but it is not the immediate priority in this situation.
Choice B rationale
Performing a thorough health history is a part of the nursing assessment, but it is not the first intervention in an acute situation such as a traumatic fall. Immediate physical needs and potential injuries need to be addressed first.
Choice C rationale
Preparing for a STAT non-contrast CT scan is the correct answer. After a traumatic fall, it is crucial to quickly assess for potential injuries, especially to the brain. A CT scan can help identify any immediate life-threatening conditions such as bleeding in the brain.
Choice D rationale
Inserting an indwelling urinary catheter to monitor urine output is an intervention that may be necessary depending on the client’s condition, but it is not the first intervention to be implemented after a traumatic fall.
Correct Answer is C
Explanation
Choice A rationale
Nicardipine is a calcium channel blocker used to treat high blood pressure. While it can be used in the management of subarachnoid hemorrhage, it is not primarily used to decrease intracranial pressure.
Choice B rationale
Dopamine is a type of medication used to treat certain conditions such as low blood pressure, heart failure, and Parkinson’s disease. It is not typically used to decrease intracranial pressure in the context of a subarachnoid hemorrhage.
Choice C rationale
Mannitol is a type of medication that is used to decrease intracranial pressure. It works by drawing fluid out of the brain to help reduce swelling.
Choice D rationale
Phenytoin is a medication used to control seizures. While it can be used in the management of subarachnoid hemorrhage, it is not primarily used to decrease intracranial pressure. Migraine Explore
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