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 A
Explanation
Choice A rationale
The aura phase is characterized by sensory, motor, or visual disturbances that occur before the headache phase of a migraine. Symptoms such as tingling of the face and blind spots in the eyes are common during this phase.
Choice B rationale
The postdrome phase, also known as the “migraine hangover,” occurs after the headache phase. It does not typically include symptoms such as tingling of the face or blind spots in the eyes.
Choice C rationale
The prodrome phase, also known as the pre-headache phase, can occur hours to days before the headache phase. It can include symptoms such as mood changes, food cravings, and neck stiffness, but not typically tingling of the face or blind spots in the eyes.
Choice D rationale
The headache phase is the period during a migraine when the actual headache occurs. It is not typically associated with symptoms such as tingling of the face or blind spots in the eyes.
Correct Answer is B
Explanation
Choice A rationale
Pulmonary embolus is a serious condition that can occur due to prolonged immobility, but it is not directly related to the timing of enteral nutrition in a client with increased intracranial pressure.
Choice B rationale
Bacterial translocation refers to the migration of bacteria from the gut to other areas of the body. Early enteral nutrition (within 24 to 48 hours) in critically ill patients can help maintain the integrity of the gut mucosa and prevent bacterial translocation. Therefore, starting enteral nutrition within this timeframe can help prevent bacterial translocation.
Choice C rationale
Deep vein thrombosis, like pulmonary embolus, is a risk due to immobility but is not directly related to the timing of enteral nutrition.
Choice D rationale
Myocardial infarction is a cardiac event that could be related to overall cardiovascular health, stress, or specific injury to the cardiac muscle. It is not directly prevented by the initiation of enteral nutrition.
Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.
Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today
Report Wrong Answer on the Current Question
Do you disagree with the answer? If yes, what is your expected answer? Explain.
Kindly be descriptive with the issue you are facing.