⚖️ Diagnosis Showdown
A 35-year-old seeks therapy three months after ending a seven-year relationship. She reports sadness, worry about her future, insomnia, and difficulty concentrating. She continues working and spending time with friends but says she is “barely holding it together.” She denies prior episodes of depression.
Which diagnosis should the therapist consider first while continuing assessment?
A. Major Depressive Disorder
B. Adjustment Disorder with mixed anxiety and depressed mood
C. Generalized Anxiety Disorder
D. Persistent Depressive Disorder
Answer: B
The clear stressor and onset following the breakup make Adjustment Disorder an important initial consideration. However, the therapist still needs to determine whether another disorder better accounts for the symptoms and whether Adjustment Disorder criteria are met.
A client reports feeling depressed for several weeks after losing his job.
Which question provides the most useful diagnostic information?
A. “How did you feel about your previous employer?”
B. “What symptoms have you experienced, how often, and how have they affected your functioning?”
C. “What coping strategies have worked before?”
D. “Who is supporting you right now?”
Answer: B
C and D are clinically useful, but B gives the most diagnostic information.
During intake, a client being assessed for depression states, “Sometimes I wish I could go to sleep and never wake up.”
What should the therapist do first?
A. Complete the depression assessment
B. Develop a safety plan
C. Conduct further suicide risk assessment
D. Arrange hospitalization
Answer: C
Notice that B could become appropriate. But you don't yet have enough information to determine the appropriate response.
A client reports excessive worry about work and finances for eight months, insomnia, tension, and irritability.
Which finding would most challenge GAD?
A. The client worries at night
B. The anxiety occurs exclusively during recurrent episodes of substance use
C. The client experiences muscle tension
D. The client worries about multiple subjects
Answer: B
The anxiety occurs exclusively during recurrent episodes of substance use
A college student reports anxiety, tremors, insomnia, and heart palpitations. He drinks six energy drinks daily while studying.
What should the therapist consider?
A. GAD
B. Panic Disorder
C. Substance/medication-related contribution to the anxiety symptoms
D. Adjustment Disorder
Answer: C
Substance/medication-related contribution to the anxiety symptoms
A client reports recurrent panic attacks. Most occur while driving on freeways, although two occurred unexpectedly while relaxing at home. Since then, he avoids freeways and worries daily about having another attack.
Which diagnosis requires the most careful assessment?
A. Specific Phobia
B. Panic Disorder
C. Agoraphobia
D. Generalized Anxiety Disorder
Answer: B
The unexpected attacks plus persistent concern and behavioral change raise Panic Disorder. But the driving-specific avoidance warrants further assessment of what exactly he fears and whether additional diagnoses are present.
A client reports intrusive thoughts about accidentally hurting her infant. She becomes distressed by the thoughts and avoids holding the baby near stairs.
What should the therapist assess first to differentiate possible OCD symptoms from actual intent to harm?
A. Whether she experienced anxiety before pregnancy
B. Whether the thoughts are unwanted and inconsistent with her desires, and whether she has intent, plan, or desire to act on them
C. Whether her partner helps with childcare
D. How frequently the baby cries
Answer: B
The therapist needs both risk assessment and phenomenology. Intrusive, ego-dystonic thoughts are different from intent.
A client presents with sudden episodes of chest tightness, dizziness, shortness of breath, and heart racing. She believes she has panic attacks but has never discussed the symptoms with a physician.
What is the best course of action?
A. Diagnose Panic Disorder
B. Begin interoceptive exposure
C. Continue psychological assessment while encouraging appropriate medical evaluation to rule out relevant physical causes
D. Refer the client out because therapists cannot treat symptoms until medical causes are ruled out
Answer: C
Continue psychological assessment while encouraging appropriate medical evaluation to rule out relevant physical causes
A client appears to meet criteria for MDD.
Which new information most changes the differential?
A. Her mother has depression
B. She sometimes eats when sad
C. She previously experienced a clear manic episode
D. She dislikes her job
Answer: C
A history of mania fundamentally changes the diagnostic picture.
A client reports low mood, fatigue, difficulty concentrating, sleeping excessively, and decreased motivation. She also reports a recent significant change in physical health and has not received medical evaluation.
What is the best approach?
A. Diagnose MDD because five symptoms are unnecessary when impairment exists
B. Assume symptoms are medical
C. Continue mental health assessment while considering medical contributors and encouraging appropriate medical evaluation
D. Delay all therapy until she sees a physician
Answer: C
Continue mental health assessment while considering medical contributors and encouraging appropriate medical evaluation
A 28-year-old reports difficulty concentrating, procrastination, restlessness, losing belongings, and frequently interrupting others. She recently began struggling at a demanding new job and wonders whether she has ADHD. She reports similar problems in college but says high school was “pretty easy.”
What is the most appropriate diagnostic conclusion?
A. ADHD, Combined Presentation
B. GAD
C. Adjustment Disorder with Anxiety
D. Additional developmental and differential assessment is needed
Answer: D
The current symptoms could be consistent with ADHD, but the therapist needs evidence about childhood onset, settings, impairment, and competing explanations.
Discussion: What would you ask about elementary and middle school?
A 16-year-old reports irritability, declining grades, sleeping excessively, and withdrawing from friends. His parents believe he is depressed. He says, “I'm just tired.”
Which area is most important to assess before settling on a depressive diagnosis?
A. Whether his parents argue
B. His hobbies
C. Mood symptoms, suicidality, substances, sleep, medical factors, stressors, and changes from baseline
D. Whether his friends are depressed
Answer: C
Adolescent irritability and withdrawal can have multiple explanations.
A client seeks treatment for depression. He reports low mood, anhedonia, fatigue, guilt, and insomnia. During assessment, he says, “Sometimes I go a few days barely sleeping and feel incredible, but that's just when I'm doing well.”
What should the therapist do next?
A. Begin behavioral activation
B. Assess those periods for manic or hypomanic symptoms
C. Diagnose MDD
D. Refer immediately to psychiatry
Answer: B
D might eventually be appropriate, but first the therapist needs to understand what is occurring.
A client presents with recurrent intrusive thoughts and repetitive checking behaviors.
Which finding most challenges OCD as the primary explanation?
A. Checking temporarily decreases anxiety
B. The client recognizes the thoughts may be unreasonable
C. The checking occurs exclusively because the client experiences a fixed delusional belief and does not recognize the possibility that the belief is inaccurate
D. Symptoms consume two hours daily
Answer: C
That should trigger broader assessment rather than automatic OCD conceptualization.
A client immigrated to the United States recently and reports occasionally communicating with deceased ancestors during religious ceremonies. She is not distressed by the experience, her community considers it normal, and there is no impairment.
What is the best response?
A. Assess for schizophrenia
B. Diagnose Unspecified Psychotic Disorder
C. Consider the cultural and religious context before interpreting the experience as psychopathology
D. Refer for psychiatric medication evaluation
Answer: C
Consider the cultural and religious context before interpreting the experience as psychopathology
A client reports depressed mood, fatigue, guilt, insomnia, difficulty concentrating, and loss of interest for six weeks. During the intake, she reports that several years ago she went through a period when she slept four hours nightly, felt unusually confident, became extremely productive, and impulsively started a business.
What is the best diagnostic approach?
A. MDD because she currently meets depressive criteria
B. Bipolar II Disorder because she previously experienced hypomania
C. Bipolar I Disorder because decreased sleep indicates mania
D. Further assess the previous episode before determining whether the depression is unipolar or bipolar
Answer: D
The history raises concern for bipolar spectrum illness, but there isn't enough information to establish mania or hypomania.
A client says she sometimes feels as though she is watching herself from outside her body.
Which question is most diagnostically useful?
A. “Do you consider yourself spiritual?”
B. “When this happens, what exactly do you experience, what tends to precede it, how long does it last, and do you remain aware that the experience isn't literally happening?”
C. “Does anyone in your family have schizophrenia?”
D. “Have you tried meditation?”
Answer: B
The clinician needs to characterize the experience before deciding whether it reflects dissociation, psychosis, panic, trauma-related symptoms, substance effects, or something else.
A client reports nightmares, hypervigilance, irritability, avoidance, and emotional detachment after witnessing a fatal accident. The symptoms have persisted for several months. The client also reports drinking heavily every night to sleep.
What should the therapist prioritize?
A. Diagnose PTSD and begin trauma processing
B. Diagnose Alcohol Use Disorder and postpone trauma assessment
C. Assess safety, alcohol use and withdrawal risk, trauma symptoms, functioning, and the relationship between the presentations before establishing treatment priorities
D. Treat insomnia because it maintains both conditions
Answer: C
The tempting answer is A. But the alcohol use may affect safety, assessment, treatment planning, and the appropriateness/timing of interventions.
A client reports flashbacks, nightmares, avoidance, and hypervigilance following a highly distressing divorce.
What detail creates the biggest diagnostic problem for PTSD?
A. The symptoms began after the divorce
B. The client has nightmares
C. No event described so far clearly establishes qualifying trauma exposure for PTSD
D. The client avoids reminders
Answer: C
Teaching point: Something can be profoundly distressing without necessarily meeting the DSM trauma exposure criterion.
A child has frequent emotional outbursts at school but rarely at home. The teacher believes the child has ADHD.
What should the therapist do before diagnosing ADHD?
A. Accept the teacher's observations because symptoms occur at school
B. Assess symptoms and impairment across settings and gather developmental and collateral information
C. Rule out ADHD because behavior is different at home
D. Diagnose Adjustment Disorder
Answer: B
Assess symptoms and impairment across settings and gather developmental and collateral information
A 40-year-old reports excessive worry, muscle tension, irritability, insomnia, and difficulty concentrating. Symptoms worsened after she learned her department may be eliminated four months ago. She says, “I've always worried more than everyone else,” and describes years of worrying about finances, health, relationships, and work.
What is the best next diagnostic step?
A. Diagnose Adjustment Disorder with Anxiety because there is an identifiable stressor
B. Diagnose GAD because she reports lifelong anxiety
C. Determine whether the anxiety met criteria for GAD before the recent stressor
D. Diagnose both GAD and Adjustment Disorder
Answer: C
The stressor may have exacerbated a preexisting anxiety disorder. The clinician needs to establish the earlier symptom pattern before attributing the presentation to the recent stressor.
A client reports periods of increased energy, reduced sleep, irritability, rapid speech, and impulsive decisions.
Which additional information would most strongly distinguish mania from hypomania?
A. Whether the client enjoyed the episodes
B. Whether family members noticed a change
C. Duration and whether the episode caused marked impairment, hospitalization, or psychotic features
D. Whether the client also experiences anxiety
Answer: C
Duration and whether the episode caused marked impairment, hospitalization, or psychotic features
A client presents with depressed mood and reports hearing a voice saying, “You're worthless.” She denies suicidal intent. She reports sleeping two hours per night for the past week and appears increasingly agitated during the session.
What should the therapist do first?
A. Diagnose MDD with psychotic features
B. Explore childhood trauma underlying the voice
C. Conduct a more immediate assessment of safety, psychosis, mood symptoms, sleep, functioning, substances/medical factors, and need for a higher level of care
D. Use grounding skills to reduce agitation
Answer: C
Several diagnoses are possible. Immediate assessment takes priority over diagnostic certainty.
A client reports persistent fear that she has cancer despite repeated reassurance. She frequently examines her body and researches cancer symptoms online.
The therapist initially considers Illness Anxiety Disorder.
Which finding would most strongly shift the differential?
A. She worries daily
B. She has had anxiety for years
C. Her fear is driven by intrusive, unwanted thoughts and she performs highly ritualized checking to neutralize them
D. She searches symptoms online
Answer: C
Now OCD deserves careful consideration because the function and phenomenology of the behavior have changed the picture.
A client reports anxiety, insomnia, hypervigilance, difficulty concentrating, and irritability. She has a trauma history and assumes she has PTSD. During assessment, she denies nightmares, intrusive memories, avoidance of trauma reminders, or other intrusion symptoms. She describes worrying constantly about finances, her children, work, health, and relationships for several years.
Which response demonstrates the strongest diagnostic reasoning?
A. PTSD because hypervigilance plus trauma history establishes the diagnosis
B. GAD because the current presentation may be better explained by pervasive anxiety, while continuing to assess trauma-related symptoms
C. PTSD and GAD because trauma and worry are both present
D. Adjustment Disorder because the anxiety is related to life stress
Answer: B
Teaching point: Trauma history ≠ PTSD. Diagnosis depends on the symptom pattern, not simply the presence of trauma.