A nurse is discussing the theories that explain the biological basis of Major Depressive Disorder (MDD) with a group of nursing students. Which theory suggests that depression is caused by an imbalance of neurotransmitters in the brain that regulate mood, motivation, reward, cognition, and stress response?

Genetic theory.

Neuroendocrine theory.

Neurotransmitter theory.

Environmental theory.

Answer and Explanation

The Correct Answer is C

Choice A rationale:

Genetic theory suggests that a person's genetic makeup can predispose them to develop depression, but it does not specifically address the role of neurotransmitters in depression. While genetics can contribute to the risk of major depressive disorder (MDD), this choice doesn't focus on the neurotransmitter imbalances.

Choice B rationale:

Neuroendocrine theory pertains to the role of hormones in depression, particularly abnormalities in the hypothalamic-pituitary-adrenal (HPA) axis. While hormones play a role in mood regulation, this theory does not primarily revolve around neurotransmitter imbalances.

Choice C rationale:

Neurotransmitter theory proposes that an imbalance of neurotransmitters, such as serotonin, norepinephrine, and dopamine, contributes to the development of major depressive disorder. This theory aligns with the idea that these neurotransmitters are responsible for regulating mood, motivation, reward, cognition, and stress response.

Choice D rationale:

Environmental theory suggests that external factors, such as life events and stressors, contribute to the development of depression. While environment can indeed influence depression, it does not specifically address the neurotransmitter imbalances that are central to this question.

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Correct Answer is A

Explanation

Choice A rationale:

Patient Health naire (PHQ-9). The PHQ-9 is a commonly used depression assessment tool that evaluates a patient's mood and depressive symptoms. It consists of nine questions that correspond to the nine criteria for diagnosing major depressive disorder (MDD) according to the DSM-5. The tool assesses various aspects of depression, such as mood, sleep disturbances, appetite changes, and more. It's a self-report questionnaire that helps clinicians assess the severity of a patient's depression and track their progress over time.

Choice B rationale:

Hamilton Depression Rating Scale (HAM-D). The Hamilton Depression Rating Scale (HAM-D) is another widely used tool for assessing the severity of depressive symptoms in patients with mood disorders. It contains multiple items that evaluate various aspects of depression, such as mood, feelings of guilt, suicidal ideation, and more. Unlike the PHQ-9, the HAM-D is typically administered by a trained clinician and is more extensive, making it suitable for clinical research and diagnosis but potentially less practical for routine screening.

Choice C rationale:

Beck Depression Inventory (BDI). The Beck Depression Inventory (BDI) is a self-report questionnaire designed to assess the presence and severity of depressive symptoms in individuals. It consists of 21 multiple-choice questions that cover various emotional, cognitive, and physical symptoms of depression. The BDI is useful for assessing the intensity of depression and changes in symptom severity over time. While a valuable tool, it's not the assessment tool most likely used in this scenario.

Choice D rationale:

Mini-Mental State Examination (MMSE). The Mini-Mental State Examination (MMSE) is not an appropriate tool for assessing depression. Instead, it's a brief cognitive screening test used to assess cognitive impairment and cognitive decline in individuals, especially in older adults. It evaluates aspects such as orientation, memory, attention, language, and visuospatial skills. It is not designed to assess mood, anxiety, or other emotional aspects related to depression.

A. Signs of normal bereavement. B. Symptoms of bipolar disorder. C. Indicators of substance-induced mood disorder. D. Criteria for diagnosing MDD according to DSM-5.

Correct Answer is D

Explanation

Choice A rationale:

Signs of normal bereavement. Bereavement refers to the period of grief and mourning after the loss of a loved one. While fatigue and feelings of worthlessness can be experienced during bereavement, difficulty concentrating is not a typical sign. Additionally, bereavement-related symptoms typically improve over time as the individual processes their loss. The combination of extreme fatigue, difficulty concentrating, and thoughts of worthlessness suggests a more severe and persistent condition than normal bereavement.

Choice B rationale:

Symptoms of bipolar disorder. Bipolar disorder is characterized by alternating episodes of depression and mania (or hypomania). The client's symptoms of extreme fatigue, difficulty concentrating, and thoughts of worthlessness are primarily indicative of a depressive episode, which is only one aspect of bipolar disorder. Bipolar disorder requires the presence of manic or hypomanic episodes, which are not mentioned in the client's presentation.

Choice C rationale:

Indicators of substance-induced mood disorder. Substance-induced mood disorder occurs as a result of substance use or withdrawal and involves changes in mood and affect. While substances can lead to symptoms similar to depression, the combination of symptoms presented by the client (fatigue, difficulty concentrating, thoughts of worthlessness) is more indicative of a primary mood disorder rather than one directly caused by substance use.

Choice D rationale:

Criteria for diagnosing MDD according to DSM-5. The client's symptoms of extreme fatigue, difficulty concentrating, and thoughts of worthlessness align with the criteria for Major Depressive Disorder (MDD) as defined in the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-5). These criteria include the presence of specific symptoms for a specified duration, causing significant impairment in functioning. The symptoms should not be better explained by other conditions or substances. In this case, the client's presentation closely matches the criteria for diagnosing MDD.

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Naxlex Comprehensive Predictor Exams

A nurse is administering a depression assessment tool to a client. The tool evaluates mood, anxiety, insomnia, somatic symptoms, and other aspects of depression. Which assessment tool is the nurse most likely using?

Correct Answer is A

Explanation

A nurse is conducting a mental health assessment on a client. The client reports feeling extremely fatigued, having difficulty concentrating, and having thoughts of worthlessness. The nurse recognizes these as:

Correct Answer is D

Explanation

(Select All That Apply): A nurse is assessing a client for major depressive disorder (MDD). Which of the following signs and symptoms are consistent with the clinical presentation of MDD? Select all that apply.

(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.

(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.

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

(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 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 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 client is curious about the impact of chronic stress on the development of depression. Which statement accurately reflects the relationship between chronic stress and depression according to the text?