Mood Disorders
QUESTIONS
1. A 76-year-old male patient is admitted to an acute psychiatric unit for severe suicidal ideation. He admits to feeling hopeless and refuses to contract for safety. He has a history of noncompliance with treatment and is refusing to take any medicines. He has severe psychomotor retardation and stops eating and drinking. A reasonable choice of treatment in this patient would be:
A. persuade the patient to take antidepressants
B. wait and watch for the patient to change his mind
C. consider feeding against his will
D. electroconvulsive treatment (ECT)
E. intensive psychotherapy
View Answer
1. Answer: D. This elderly male has major depressive disorder, severe with suicidal ideation. Although antidepressants are helpful, it will take a few weeks before response is noted. Severe depression and suicidal ideation needs immediate treatment. To obtain response quickly, ECT is a reasonable option in this patient.
2. A 22-year-old female is self-referred for an evaluation to rule out bipolar disorder. She complains of rapid mood swings with uncontrollable anger and irritability. During the assessment, it is noted that she has not had any sustained relationships for many years and feels empty. She fears abandonment by her friends and blames others for making her feel angry. What is the most important differential diagnosis in this patient?
A. Major depressive disorder
B. Borderline personality disorder
C. Histrionic personality
D. Depressive personality
E. Generalized anxiety disorder
View Answer
2. Answer: B. Borderline personality disorder is characterized by pervasive instability in moods, interpersonal relationships, self-image, and behavior. This instability often disrupts family and work life, long-term planning, and the individual’s sense of self-identity. It affects about 2% of adults, mostly young women. There is a high rate of self-injury without suicide intent, as well as a significant rate of suicide attempts and completed suicide in severe cases.
3. A 56-year-old female is admitted to an acute psychiatric inpatient unit for severe depression. The patient was ruminating about suicide and guilt feelings that were distressing her. She is “convinced” that she has committed sin and deserved to be punished, although there was nothing in her history to justify this. The resident doctor thinks that the patient is obsessed with thoughts of guilt and feels that the patient has a primary obsessional disorder. A trial of antidepressant medication was not helpful despite trying a high dose. The attending physician explains that patient is not obsessional but severely depressed because:
A. she has suicidal ideation
B. she has indeed committed sin and is now depressed
C. she is distressed by the guilt feelings and is “convinced” of the sin
D. the attending physician thinks so
E. antidepressants alone were not effective
View Answer
3. Answer: C. This patient is “convinced” that she has committed sin and has guilt feelings about it, despite no evidence to the contrary. This is suggestive of a delusion probably secondary to depression. In obsessional disorder, the patients are not delusional, and however bizarre the obsessions and compulsions are, they have insight into their condition. In patients who are depressed and delusional like this, a low-dose antipsychotic is often necessary.
4. A 62-year-old female with seasonal affective disorder prefers “nonmedical” treatment for depression. She tried cognitive behavioral therapy with limited success. She likes the idea of bright light therapy and is willing to spend 30 to 40 minutes every morning in front of the light therapy unit. For light therapy to be effective, the intensity of the light should ideally be:
A. 1,000 lux
B. 10,000 lux
C. 100,000 lux
D. 500 lux
E. 5,000 lux
View Answer
4. Answer: B. Although lower light intensity has also been found to be effective in some studies, 10,000 lux was found to be most effective.
5. All of the following support the norepinephrine deficiency hypothesis for depression except:
A. decreased norepinephrine-mediated release of growth hormone in response to clonidine
B. decreased cyclic adenosine monophosphate (cAMP) turnover in platelets following stimulation with clonidine
C. increased platelet alpha 2-adrenergic receptor binding
D. increased beta-adrenergic receptors in depression and subjects who committed suicide
E. decreased levels of cAMP in cerebrospinal fluid (CSF)
View Answer
5. Answer: E. There is no evidence for deficiency of cAMP in CSF in subjects with depression. The rest of the facts support the norepinephrine deficiency hypothesis for depression.
6. Several biomarkers were investigated for depression, but none of them had a high specificity. One of the consistent findings in depression, however, is abnormally elevated cortisol levels. This is thought to be secondary to:
A. primary hypersecretion of cortisol
B. primary hypersecretion of adrenocorticotropic hormone (ACTH)
C. primary hypersecretion of corticotrophin-releasing factor (CRF) by the hypothalamus
D. higher incidence of diabetes in depression
E. higher incidence of adrenal tumors in depression
View Answer
6. Answer: C. Primary hypersecretion of CRF by the hypothalamus results in increased secretion of ACTH. This in turn leads to elevated cortisol levels. There is no evidence to suggest a primary hypersecretion of either ACTH or cortisol. Results of the dexamethasone suppression test are positive in 50% of depressed patients because of increased cortisol levels. There is no evidence for a higher incidence of adrenal tumors in depression.
7. A 56-year-old male with a history of chronic recurrent depression is bothered by a recent news article that mentions increased mortality in patients with depression because of increased incidence of a variety of health problems and infections. He would like to know if this is true. According to the psychoimmunology theory, the higher incidence of infections and other chronic conditions is because:
A. patients with depression do not take care of themselves
B. patients with depression do not receive adequate care because they have mental illness
C. antibiotics are not as effective in depressed patients compared to others without depression
D. hypothalamic-pituitary-adrenal (HPA) dysfunction causes immune suppression
E. increased T-cell replication
View Answer
7. Answer: D. HPA axis dysfunction leads to increased cortisol levels, which is thought to be responsible for various immune system abnormalities noticed in depression. There is no evidence to show that patients with depression are any less motivated in taking care of themselves when compared to patients with other chronic illness.
8. Research in subjects with depression has revealed several immunological abnormalities that are in turn responsible for increased morbidity and mortality. All of the following findings are true except:
A. decreased natural killer cells
B. decreased interleukin-2
C. decreased absolute neutrophil count
D. decreased T-cell replication
E. increased monocyte activity
View Answer
8. Answer: C. Absolute neutrophil count is found to be in the normal range in depressed patients. All the other abnormalities mentioned are thought to be secondary to abnormal HPA axis.
9. A 63-year-old male with major depressive disorder complains of difficulty falling asleep and early morning awakenings. He is otherwise healthy and does not have any physical health problems. He is referred for a sleep study. The sleep architecture in this patient is likely to show all of the following except:
A. decrease in sleep efficiency (total duration of sleep/total duration of time in bed multiplied by 100 or the percentage of time in bed spent asleep)
B. increase in the total duration of rapid eye movement (REM) sleep
C. decrease in the latency to the onset of REM sleep
D. increased latency to the onset of REM sleep
E. impaired sleep continuity
View Answer
9. Answer: D. There is a decrease in the latency to the onset of REM sleep, an increase in the total duration of REM sleep, and an increase in REM density (number of rapid eye movements per epoch of REM sleep). Sleep continuity is disrupted, resulting in decreased sleep efficiency.
10. Brain imaging studies in depression have revealed some interesting facts that have enhanced our understanding of the pathophysiology of depression. All of the following were found in brain imaging studies in subjects with depression except:
A. decreased volume of parietal lobes
B. decreased volume of frontotemporal lobes
C. decreased caudate size
D. increased ventricular size
E. decreased blood flow in the dorsolateral prefrontal cortex
View Answer
10. Answer: A. All of these findings are noted in brain-imaging studies of subjects with depression, except that no consistent abnormalities have been found in parietal lobes.
11. One of the criteria for the diagnosis of major depressive disorder is weight loss that is unintentional. The criteria for weight loss specify that:
A. loss of any amount of weight is significant
B. loss of 5% or more of the body weight in the past 1 month
C. loss of 10% or more of body weight in the past 1 month
D. loss of 10% of body weight in the past 2 weeks
E. loss of 5% of the body weight in the past 2 weeks
View Answer
11. Answer: B. The weight loss criteria for depression specifies that it should be 5% or more of the total body weight in the past 1 month.
12. The manifestation of depression symptoms are slightly different in different age groups and also in men and women. Agitated depression is a term more commonly used to describe depression in which group of patients?
A. Young children
B. Adolescents
C. Adults
D. Women
E. Elderly
View Answer
12. Answer: E. The manifestations of depression symptoms are slightly different in different age groups and also in men and women. Irritability is sometimes the predominant symptom in adolescents, whereas agitation is a common symptom in the elderly.
13. A 32-year-old female presents with low mood and lack of interests. After careful history and extensive collateral information, the treating psychiatrist makes a diagnosis of atypical depression. All of the following are the features of atypical depression except:
A. intense, unstable emotions
B. increased appetite
C. increased sleep
D. mood reactivity
E. rejection sensitivity
F. leaden paralysis
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13. Answer: A. Intense, unstable emotions are more characteristic of borderline personality disorder than atypical depression. Atypical features are two to three times more common in women and individuals report earlier age of onset of depressive episodes. Episodes of atypical features are more common in patients with bipolar I disorder, bipolar II disorder, and in major depressive disorder, recurrent, occurring in a seasonal pattern.

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