A nurse is explaining the role of neurotransmitters in the pathophysiology of MDD to a group of nursing students. Which neurotransmitters are mentioned in the text as being involved in regulating mood, motivation, reward, cognition, and stress response?

Acetylcholine and gamma-aminobutyric acid (GABA).

Glutamate and epinephrine.

Serotonin, dopamine, and norepinephrine.

Endorphins and oxytocin.

Answer and Explanation

The Correct Answer is C

Choice A rationale:

Acetylcholine and gamma-aminobutyric acid (GABA) are not the primary neurotransmitters involved in regulating mood, motivation, reward, cognition, and stress response. Acetylcholine plays a role in memory and muscle control, while GABA is an inhibitory neurotransmitter that helps regulate anxiety and sleep. These neurotransmitters are not as closely associated with the functions mentioned in the question.

Choice B rationale:

Glutamate is a major excitatory neurotransmitter in the central nervous system, and epinephrine (also known as adrenaline) is a hormone that prepares the body for the fight-or-flight response. While both glutamate and epinephrine play important roles in various physiological responses, they are not primarily responsible for regulating mood, motivation, reward, cognition, and stress response as mentioned in the question.

Choice C rationale:

Serotonin, dopamine, and norepinephrine are all key neurotransmitters involved in the regulation of mood, motivation, reward, cognition, and stress response. These neurotransmitters have been extensively studied in the context of mood disorders like Major Depressive Disorder (MDD). Serotonin is often associated with feelings of well-being and happiness, dopamine is linked to pleasure and reward pathways, and norepinephrine is involved in the body's stress response. Imbalances in these neurotransmitters have been implicated in the development of mood disorders.

Choice D rationale:

Endorphins and oxytocin are important neurotransmitters, but they are not as directly related to the regulation of mood, motivation, reward, cognition, and stress response as the neurotransmitters mentioned in choice C. Endorphins are known for their role in pain modulation and feelings of pleasure, while oxytocin is often referred to as the "bonding hormone" and is associated with social connections and childbirth.

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Correct Answer is ["A"]

Explanation

Choice A rationale:

Electroconvulsive therapy (ECT) and other somatic therapies are considered main treatment options for Major Depressive Disorder (MDD). ECT involves passing electric currents through the brain to induce controlled seizures, and it's often used in severe cases of depression that haven't responded to other treatments. Somatic therapies encompass a range of interventions that directly target the body, such as transcranial magnetic stimulation (TMS) and vagus nerve stimulation (VNS). These treatments are supported by extensive research and clinical evidence, particularly for cases where pharmacological interventions haven't been effective or suitable.

Choice B rationale:

Pharmacological interventions are indeed a mainstay in MDD treatment. However, while they are effective for many individuals, they might not work for everyone and can have side effects. Hence, the treatment approach should be tailored to the individual's needs and preferences.

Choice C rationale:

Herbal supplements are not considered main treatment options for MDD according to established clinical guidelines. While some herbal supplements might have anecdotal support for mood enhancement, their efficacy and safety are not well-established through rigorous scientific research and clinical trials.

Choice D rationale:

Physical exercise has been shown to have a positive impact on mood and can be a beneficial adjunct to MDD treatment. However, it's typically not considered a standalone main treatment option. Rather, it's often recommended as a complementary approach alongside other evidence-based treatments.

Choice E rationale:

Mindfulness-based cognitive therapy (MBCT) is a psychological approach that combines mindfulness meditation with cognitive behavioral techniques. While MBCT has shown promise in preventing relapse for individuals with recurrent depression, it's usually used as a psychotherapeutic adjunct to other main treatments like pharmacological interventions or psychotherapy.

A. Symptoms must cause mild distress. B. At least one symptom must be insomnia. C. Symptoms must not be due to a medical condition. D. Presence of a manic or hypomanic episode. E. Five or more symptoms present during a 2-week period.

Correct Answer is ["C","E"]

Explanation

Choice A rationale:

Symptoms of major depressive disorder (MDD) are characterized by causing significant distress, not mild distress. The distress associated with MDD is usually severe and impairs daily functioning.

Choice B rationale:

While insomnia is a common symptom of major depressive disorder (MDD), it is not necessary for the diagnosis. Other symptoms, such as changes in appetite, psychomotor agitation or retardation, fatigue, and diminished interest or pleasure, can also contribute to the diagnosis.

Choice C rationale:

The correct answer. Symptoms of major depressive disorder (MDD) must not be due to a medical condition. It's crucial to rule out medical conditions that can mimic depressive symptoms, such as hypothyroidism or certain neurological disorders.

Choice D rationale:

The presence of a manic or hypomanic episode would indicate a diagnosis of bipolar disorder, not major depressive disorder (MDD). Bipolar disorder involves distinct periods of both elevated mood and depressive episodes.

Choice E rationale:

The correct answer. To meet the diagnostic criteria for major depressive disorder (MDD) according to DSM-5, an individual must experience five or more symptoms of depression during a continuous two-week period. These symptoms must include either depressed mood or loss of interest/pleasure. The scenario did not specify all the symptoms, but the persistent feelings of sadness, guilt, worthlessness, weight loss, and insomnia described align with the criteria.

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A nurse is explaining the role of neurotransmitters in the pathophysiology of MDD to a group of nursing students. Which neurotransmitters are mentioned in the text as being involved in regulating mood, motivation, reward, cognition, and stress response?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

(Select All That Apply): A nurse is educating a group of clients about the treatment approaches for MDD. Which of the following modalities are considered main treatment options for MDD according to the text? Select all that apply.

Correct Answer is ["A"]

Explanation

(Select All That Apply): A nurse is teaching a group of nursing students about the diagnostic criteria for major depressive disorder (MDD) according to DSM-5. Which of the following are part of the diagnostic criteria? Select all that apply.

Correct Answer is ["C","E"]

Explanation

A client wants to understand the factors that contribute to the development of depression. Which of the following factors are mentioned in the text as potential contributors to depression?

A nurse is assessing a client who has been experiencing persistent feelings of sadness, fatigue, and difficulty concentrating. The client denies any history of manic episodes. Which of the following conditions should the nurse consider as a possible differential diagnosis for this client?

(Select All That Apply): A nurse is providing care for a client with suspected major depressive disorder (MDD). Which of the following are risk factors for developing MDD? Select all that apply.

(Select All That Apply): A nurse is discussing the psychosocial factors that can affect or be affected by depression with a client. Which of the following factors are considered psychosocial factors related to depression? Select all that apply.

A client is concerned about the potential side effects of antidepressant medications. Which of the following side effects is commonly associated with antidepressant use?

A client is sharing their experiences with a nurse. The client states, "I just can't seem to enjoy anything anymore. Even activities I used to love don't bring me pleasure." This statement by the client is indicative of:

A nurse is providing education to a group of nursing students about major depressive disorder (MDD). Which of the following statements accurately describes a characteristic of MDD?