Chapter review

Fitzgerald PMHNP board review. ch14. Older Adults. This is drive 3 of 7. When I say Pause. Answer. wait, then I will give the answer. New section. Sample Practice Questions: Section 1. Topic. Fitzgerald Q10: Initial Diagnostic Tests. Bottom Line Summary. * Sudden onset mental status changes over hours to days define **delirium**, which requires an urgent medical workup rather than psychiatric labeling [1, 2]. * First-line laboratory evaluation for acute confusion includes **serum glucose**, **urinalysis**, **complete blood count**, **comprehensive metabolic panel**, **liver function tests**, and **thyroid stimulating hormone** [3-5]. * **Urinary tract infection** and acute metabolic derangements like **hyponatremia** or **hypoglycemia** represent the most frequent reversible triggers for delirium in adults over 65 years of age [2, 6]. * Chronic dementia evaluation requires checking **vitamin B12** and **folate** levels, adding **homocysteine** or **methylmalonic acid** if B12 is low-normal source 3. * Neuroimaging with **CT** or **MRI** is indicated for structural workup in neurocognitive disorders, but basic laboratory studies and **electrocardiogram** precede neuroimaging when evaluating acute mental status changes [5, 7]. * **HIV** testing and **VDRL** are part of comprehensive dementia evaluations, but they are not essential immediate first-line tests for acute, sudden-onset confusion [2, 4]. High-Yield Clinical Teaching. First-line Diagnostic Workup for Acute Confusion. When an older adult presents with acute mental status change, the initial priority is ruling out acute, life-threatening medical conditions [2, 5]. First-line laboratory testing focuses on rapid, high-yield metabolic and infectious screening [2, 4]. Safety alert: Sudden confusion in an older adult is **delirium** until proven otherwise [1, 2]. Failing to identify underlying medical causes like sepsis or severe hypoglycemia can lead to rapid decline or death [2, 6]. Board trap: Do not jump to ordering a **head CT scan** or psychotropic medication before obtaining basic blood and urine laboratory tests source 5. Non-invasive labs and an **electrocardiogram** take priority over immediate neuroimaging unless trauma or focal neurological signs are present source 5. Laboratory Comparison: Acute Delirium vs. Chronic Neurocognitive Workup. Initial laboratory testing differs based on acuity and clinical presentation: * Acute workup focuses on **serum glucose**, **urinalysis**, **electrolytes**, **liver function tests**, **complete blood count**, and **arterial oxygenation** or pulse oximetry to detect acute infection, hypoxia, or organ failure [2, 4, 5, 8]. * Chronic workup for **major neurocognitive disorder** adds **thyroid stimulating hormone**, **vitamin B12**, **folate**, **RPR** or **VDRL**, and **HIV** screening to identify metabolic, nutritional, or chronic infectious causes of cognitive decline [3, 4]. Sample Practice Question. Question 10. When assessing a 73-year-old woman with sudden onset mental status change, all of the following initial diagnostic tests would be essential, except: A) Serum glucose level B) Urinalysis C) Liver function tests D) HIV test Pause. Answer: D source 2 Rationale. * Why D is correct: An **HIV test** is not an essential first-line test for acute, sudden-onset mental status change source 2. While chronic cognitive decline may warrant infectious disease screening, acute confusion over hours to days points to **delirium**, requiring immediate evaluation for acute medical emergencies [1, 2]. * Why A is incorrect: Checking a **serum glucose level** is essential to immediately rule out hypoglycemia or severe hyperglycemia as a cause of acute delirium source 2. * Why B is incorrect: Obtaining a **urinalysis** is an essential initial test to rule out a urinary tract infection, which is one of the most common infectious triggers of delirium in older adults [2, 6]. * Why C is incorrect: Checking **liver function tests** is essential during initial assessment to rule out hepatic dysfunction or hepatic encephalopathy contributing to acute cognitive changes source 2. 💡 Would you like to review Question 11 on geriatric depression treatment or delve deeper into the **DELIRIUM** etiology mnemonic from Chapter 14? Next. New section. The Six Cognitive Domains and NCD Framework. Topic. Mild vs Major Neurocognitive Disorder. Bottom Line Summary. * **Acquired Cognitive Decline**: Neurocognitive disorders (NCDs) represent a decline from a previously established level of functioning across one or more of the six cognitive domains, distinct from neurodevelopmental conditions. * **Mild NCD Diagnostic Threshold**: Characterized by modest cognitive decline in at least one cognitive domain. Independence in daily activities is preserved; instrumental activities of daily living (IADLs) require greater effort or compensatory strategies, but no physical assistance. * **Major NCD Diagnostic Threshold**: Characterized by significant cognitive decline in at least one cognitive domain. Cognitive deficits interfere directly with independence, requiring assistance with IADLs (finances, meal preparation, medication management) and progressing to basic activities of daily living (ADLs). * **The Six Cognitive Domains**: Complex attention, executive function, learning and memory, language, perceptual-motor, and social cognition. * **Pharmacotherapy Limits**: Acetylcholinesterase inhibitors (donepezil, rivastigmine, galantamine) are indicated for mild to moderate Alzheimer's disease (Major NCD) and demonstrate the most benefit in this stage. They are not routinely recommended for Mild NCD. NMDA receptor antagonists (memantine) are indicated for moderate to severe Alzheimer's disease. * **Black Box Warning**: Antipsychotics used in elderly patients with NCD-related psychosis carry a Boxed Warning for a 1.6 to 1.7 times increased risk of death, primarily due to cardiovascular events (heart failure, sudden death) or infections (pneumonia). * **Geriatric Triad and Co-occurring Depression**: Up to 50% of patients with Major NCD experience co-occurring major depression. Screening and treating depression or anxiety with SSRIs in Mild NCD is essential and can delay progression to advanced NCD. * **Tricyclic Antidepressant Avoidance**: Avoid tricyclic antidepressants (TCAs) in older adults due to severe anticholinergic adverse effects including dry mouth, constipation, blurred vision, urinary retention, confusion, delirium, orthostatic hypotension, and falls. The NCD Framework: Mild vs Major Neurocognitive Disorder. Core Diagnostic Distinction. * **Mild Neurocognitive Disorder**: Features modest cognitive decline documented by patient, informant, or clinician concern along with quantified clinical assessment. The defining boundary is that the individual remains independent in daily life. IADLs are preserved, though the patient may require extra time, calendars, lists, or written notes. * **Major Neurocognitive Disorder**: Features significant cognitive decline documented by standardized neuropsychological testing or quantified clinical assessment. The defining boundary is the loss of independence in daily life, requiring assistance with complex IADLs (managing money, shopping, cooking, laundry) and eventually basic ADLs (bathing, dressing, toileting). Clinical Trajectory and Delirium Dynamics. * **Delirium Acceleration**: Episodes of delirium significantly accelerate the cognitive decline and progression of Major NCD. Preventing and treating delirium early is a priority. * **Recurrent Delirium as a Clue**: Multiple delirium episodes in an older adult often serve as an underlying signal of an undiagnosed Major NCD. * **Reversible Causes**: Reversible causes of cognitive impairment (normal pressure hydrocephalus, subdural hematoma, B12 deficiency, thyroid disease, metabolic dysregulation) account for only 2% to 5% of cases. Established Major NCDs are typically progressive and irreversible. The Six Cognitive Domains: Mild vs Major Clinical Presentations. 1. Learning and Memory. * **Domain Focus**: Immediate memory, recent memory, cued recall, and long-term memory. * **Mild NCD Presentation**: Difficulty recalling recent events, increased reliance on list-making or calendars, losing track of whether bills have already been paid. * **Major NCD Presentation**: Repeats questions or statements within the same conversation, requires frequent step-by-step reminders to orient to tasks (such as putting toothpaste on a toothbrush or remembering that a meal is taking place). 2. Executive Function. * **Domain Focus**: Planning, decision-making, working memory, responding to feedback, mental flexibility, and behavioral inhibition. * **Mild NCD Presentation**: Increased effort required to maintain or resume multi-step tasks, increased fatigue from the mental effort to organize, plan, or make decisions. * **Major NCD Presentation**: Complete reliance on others to plan IADLs or make decisions, abandoning complex multi-step projects entirely. 3. Language. * **Domain Focus**: Expressive language (naming, word-finding, fluency, grammar, syntax) and receptive language. * **Mild NCD Presentation**: Substitutes general terms for specific words, makes occasional grammatical errors, exhibits noticeable word-finding pauses. * **Major NCD Presentation**: Frequent use of vague, general phrases like "those things over there", severe word-finding deficits, inability to recall common names. 4. Perceptual-Motor. * **Domain Focus**: Visual perception, visuoconstructive reasoning, praxis (motor planning), and gnosis (object recognition). * **Mild NCD Presentation**: Needs to follow others to navigate to new places, gets turned around or lost when not fully concentrating. * **Major NCD Presentation**: Significant difficulty with previously familiar tools, appliances, or driving, inability to navigate familiar surroundings. 5. Complex Attention. * **Domain Focus**: Sustained attention, divided attention, selective attention, and processing speed. * **Mild NCD Presentation**: Tasks take longer, work requires frequent double-checking to avoid errors. * **Major NCD Presentation**: Inability to hold new information in mind, such as remembering passwords or processing what was just spoken in a sentence. 6. Social Cognition. * **Domain Focus**: Recognition of emotions, theory of mind, and behavioral self-regulation. * **Mild NCD Presentation**: Decreased ability to read subtle social cues or facial expressions, mild personality changes. * **Major NCD Presentation**: Behavior clearly falls outside acceptable social standards, insensitive to social norms, lacks insight into behavioral changes. High-Yield Board Signposts and Clinical Traps. First-Line. * **First-line for Mild NCD with mood symptoms**: Screen for depression using validated tools like the PHQ-9 and initiate an SSRI. Treating depression or anxiety can delay progression to advanced NCD. * **First-line for mild to moderate Alzheimer's disease**: Acetylcholinesterase inhibitors (donepezil, rivastigmine, galantamine). * **First-line for moderate to severe Alzheimer's disease**: NMDA receptor antagonists (memantine) added to cholinesterase inhibitors. * **First-line for behavioral and neuropsychiatric symptoms of NCD**: Non-pharmacological strategies including environmental modifications, redirection, structured routines, personalized music, and caregiver support. Safety Alert. * **Antipsychotic Mortality Warning**: All antipsychotics (typical and atypical) carry a Boxed Warning when used in elderly patients with NCD-related psychosis due to a 1.6 to 1.7 times increase in mortality from cardiovascular events (heart failure, sudden death) or infections (pneumonia). * **Anticholinergic Toxicity Hazard**: Avoid tricyclic antidepressants (TCAs) and first-generation antihistamines (diphenhydramine) in older adults due to severe anticholinergic toxicity, confusion, worsening memory, urinary retention, and falls. * **SSRI Hyponatremia Risk**: SSRIs increase the risk of hyponatremia in older adults, particularly when combined with diuretics (hydrochlorothiazide, furosemide), leading to confusion, delirium, and falls. * **Lewy Body Neuroleptic Sensitivity**: Severe neuroleptic sensitivity occurs in Lewy body disease; exposure to antipsychotics can cause acute parkinsonism, rigidity, life-threatening bradycardia, or neuroleptic malignant syndrome. Board Trap. * **The Baseline Fallacy**: Assuming cholinesterase inhibitors restore a patient's cognition back to pre-disease baseline. Boards test that these drugs offer modest, temporary slowing of decline, not a cure or baseline restoration. * **The Premature Prescribing Trap**: Reaching for second-generation antipsychotics to manage wandering, mild irritability, or vocalizations. Antipsychotics do not improve wandering or cognition and are reserved exclusively for severe agitation or immediate physical safety threats. * **Age as Depression Cause**: Assuming advanced age is an independent risk factor for depression. Age itself is not a risk factor; psychosocial and physical losses drive geriatric depression. * **Routine Prescribing for Mild NCD**: Starting cholinesterase inhibitors routinely in Mild NCD. They are not indicated or recommended for Mild NCD. Board-Style Practice Question Bank. Question 1. Up to 50 percent of individuals diagnosed with major neurocognitive disorder also experience co-occurring: A. Schizophrenia B. Major depressive disorder C. Bipolar I disorder D. Substance-induced psychosis Pause. **Quick Answer**: Up to 50 percent of individuals with major neurocognitive disorder also experience co-occurring major depressive disorder. **Key Clue**: Major neurocognitive disorder co-occurrence rate of 50 percent. **Best Answer**: B. Major depressive disorder **Why It Is Correct**: Up to 50 percent of patients with major neurocognitive disorder suffer from co-occurring major depression, forming the classic geriatric clinical triad of depression, dementia, and delirium. **Why the Other Choices Are Wrong**: * **A**: Schizophrenia onset in late life is rare and not a typical co-occurring condition in 50 percent of major NCD cases. * **C**: Bipolar disorder affects approximately 1.5 percent of the population and does not co-occur at a 50 percent rate in major NCD. * **D**: Substance-induced psychosis is an acute toxidrome rather than a primary co-occurring affective condition in half of major NCD patients. **Test-Taking Pearl**: Always screen for depression in older adults presenting with cognitive decline, as co-occurring depression is present in up to 50 percent of Major NCD cases. Question 2. In what stage of major neurocognitive disorder do acetylcholinesterase inhibitors demonstrate their primary clinical benefit? A. Mild neurocognitive disorder B. Early-stage vascular neurocognitive disorder C. Mild to moderate Alzheimer's disease D. Severe late-stage Alzheimer's disease Pause. **Quick Answer**: Acetylcholinesterase inhibitors demonstrate their primary benefit in mild to moderate Alzheimer's disease. **Key Clue**: Stage where cholinesterase inhibitors show most benefit. **Best Answer**: C. Mild to moderate Alzheimer's disease **Why It Is Correct**: Acetylcholinesterase inhibitors (donepezil, rivastigmine, galantamine) demonstrate their primary evidence-based benefit in mild to moderate Alzheimer's disease. They are not routinely recommended for mild neurocognitive disorder. **Why the Other Choices Are Wrong**: * **A**: Acetylcholinesterase inhibitors are not routinely recommended or approved for mild neurocognitive disorder. * **B**: While cholinesterase inhibitors may sometimes be considered off-label in vascular NCD, their primary established benefit is in mild to moderate Alzheimer's disease. * **D**: Severe late-stage Alzheimer's disease is primarily managed with NMDA receptor antagonists like memantine, rather than cholinesterase inhibitor monotherapy. **Test-Taking Pearl**: Cholinesterase inhibitors are indicated for mild to moderate Alzheimer's disease, whereas memantine is added for moderate to severe stages. Question 3. Mrs. Little is a 78-year-old woman with recently diagnosed Alzheimer's disease who presents for an office visit with her daughter. Her daughter reports word-finding struggles, difficulty following directions, intermittent apathy, and sudden angry verbal outbursts over minor triggers. When evaluating Mrs. Little's healthcare needs, which of the following is a pertinent clinical option? A. Cholinesterase inhibitor therapy should be started to restore her cognitive function to her pre-disease baseline. B. A second-generation antipsychotic should be started immediately to prevent verbal outbursts. C. She should be evaluated for a concomitant mood disorder and undergo a home safety evaluation. D. Non-pharmacological strategies should be avoided to prevent increasing her daily frustration. Pause. **Quick Answer**: Evaluating for a concomitant mood disorder and conducting a home safety evaluation are essential clinical options for a patient with newly diagnosed Alzheimer's disease. **Key Clue**: Recently diagnosed Alzheimer's disease with new verbal outbursts and word-finding struggles. **Best Answer**: C. She should be evaluated for a concomitant mood disorder and undergo a home safety evaluation. **Why It Is Correct**: Evaluating for a co-occurring mood disorder (such as depression) and conducting a comprehensive home safety evaluation (addressing stove use, fall risks, and wandering) are essential, high-yield interventions for a patient with newly diagnosed major NCD. **Why the Other Choices Are Wrong**: * **A**: Cholinesterase inhibitors provide modest, time-limited symptomatic slowing and do not restore cognitive function to pre-disease baseline. * **B**: Antipsychotics carry a Boxed Warning for increased mortality in NCD-related psychosis and are reserved strictly for severe agitation or immediate physical safety hazards. * **D**: Non-pharmacological strategies, environmental modifications, and routine stabilization are first-line interventions for behavioral symptoms of NCD. **Test-Taking Pearl**: Pharmacotherapy in NCD does not restore pre-disease baseline; comprehensive care must prioritize home safety and screening for co-occurring mood disorders. Question 4. Which of the following is the least likely characteristic of Alzheimer's disease? A. Slowly developing impairment of cognitive function B. Chronic condition without reversal C. Perceptual disturbances including visual hallucinations D. Progressive and irreversible decline in independence Pause. **Quick Answer**: Perceptual disturbances including visual hallucinations are least likely to be an early or primary characteristic of Alzheimer's disease. **Key Clue**: Least likely characteristic of Alzheimer's disease. **Best Answer**: C. Perceptual disturbances including visual hallucinations **Why It Is Correct**: Perceptual disturbances, such as early visual hallucinations, are classic hallmark features of Lewy body disease rather than typical Alzheimer's disease. **Why the Other Choices Are Wrong**: * **A**: Alzheimer's disease presents with an insidious, slowly developing impairment of cognitive function. * **B**: Alzheimer's disease is a chronic condition without physical reversal. * **D**: Progressive, irreversible decline in functioning and independence is the defining clinical course of Alzheimer's disease. **Test-Taking Pearl**: When early visual hallucinations appear alongside cognitive fluctuations, think Lewy body disease rather than Alzheimer's disease. Question 5. A 71-year-old male with major neurocognitive disorder develops severe bradycardia, gait disturbances, rigidity, and tremor after taking a low-dose second-generation antipsychotic for visual hallucinations. Which neurocognitive disorder subtype do you suspect? A. Alzheimer's disease B. Vascular neurocognitive disorder C. Frontotemporal neurocognitive disorder D. Lewy body disease Pause. **Quick Answer**: Severe parkinsonism and bradycardia following low-dose antipsychotic exposure indicates Lewy body disease. **Key Clue**: Severe rigidity and bradycardia following low-dose SGA administration. **Best Answer**: D. Lewy body disease **Why It Is Correct**: Patients with Lewy body disease exhibit extreme neuroleptic sensitivity; exposure to even low-dose antipsychotics can trigger severe parkinsonism, rigidity, bradycardia, or neuroleptic malignant syndrome. **Why the Other Choices Are Wrong**: * **A**: Alzheimer's disease does not exhibit this characteristic extreme neuroleptic sensitivity. * **B**: Vascular NCD presents with stepwise ischemic cognitive drops rather than severe neuroleptic sensitivity. * **C**: Frontotemporal NCD presents with early behavioral disinhibition or primary progressive aphasia rather than extreme neuroleptic sensitivity. **Test-Taking Pearl**: Extreme sensitivity to antipsychotics is a major diagnostic indicator for Lewy body disease. Question 6. Which of the following is least likely to be noted as an early feature in a patient with Lewy body disease? A. Prominent short-term memory loss B. Bradykinesia and rigidity C. Detailed visual hallucinations D. REM sleep behavior disorder Pause. **Quick Answer**: Prominent short-term memory loss is least likely to present as an early feature in Lewy body disease. **Key Clue**: Least likely early feature of Lewy body disease. **Best Answer**: A. Prominent short-term memory loss **Why It Is Correct**: Prominent short-term memory loss is typically preserved early in Lewy body disease, whereas visual hallucinations, REM sleep behavior disorder (dream enactment), and parkinsonian motor signs present early. **Why the Other Choices Are Wrong**: * **B**: Parkinsonian motor features like bradykinesia, rigidity, and gait changes are cardinal early signs of Lewy body disease. * **C**: Recurrent, well-formed visual hallucinations are a core diagnostic feature appearing early in Lewy body disease. * **D**: REM sleep behavior disorder frequently precedes cognitive decline by years in Lewy body disease. **Test-Taking Pearl**: Unlike Alzheimer's disease where short-term memory loss is the primary initial symptom, Lewy body disease typically presents first with visual hallucinations, REM sleep behavior disorder, or parkinsonism. Next. Topic. Table: Neurocognitive Disorders Framework. Bottom Line Summary. * **Major neurocognitive disorder** requires significant cognitive decline that interferes with independence in daily activities, requiring assistance with instrumental activities of daily living like managing finances or medications [1, 2]. * **Mild neurocognitive disorder** involves modest cognitive decline where instrumental activities of daily living remain preserved, though greater effort or compensatory strategies like calendars and lists are required [3, 4]. * **Delirium** develops abruptly over hours to days with fluctuating attention and awareness, and repeated delirium episodes accelerate the underlying progression of major neurocognitive disorder [1, 5, 6]. * Up to 50 percent of individuals diagnosed with a major neurocognitive disorder also suffer from co-occurring major depression, forming the classic geriatric triad of depression, dementia, and delirium source 7. * Antipsychotic medications carry an FDA boxed warning for a 1.6 to 1.7 times increased risk of death in older adults with dementia-related psychosis, primarily due to cardiovascular events or pneumonia [8, 9]. * **Cholinesterase inhibitors** like donepezil, rivastigmine, and galantamine demonstrate the most clinical benefit during the mild to moderate stage of **Alzheimer's disease** [10, 11]. * **Lewy body disease** presents early with visual hallucinations, REM sleep behavior disorder, and extreme neuroleptic sensitivity, while short-term memory loss is typically preserved in early stages [12-15]. Neurocognitive Disorders Framework. Neurocognitive disorders represent a decline from a previously established level of cognitive functioning across one or more cognitive domains, rather than a developmental deficit present at birth or early life source 16. In board prep terminology, mild neurocognitive disorder is designated as mild NCD (small m), while major neurocognitive disorder is designated as major NCD (big M) [1, 16]. The primary diagnostic distinction between mild and major neurocognitive disorder centers on functional independence. In mild neurocognitive disorder, the individual experiences modest cognitive decline, but instrumental activities of daily living remain intact source 4. The patient can still manage bills, prepare meals, and handle medications, though doing so requires increased mental fatigue, compensatory list making, or calendar reminders [3, 4, 17]. In major neurocognitive disorder, cognitive impairment creates significant interference, requiring hands-on assistance from caregivers to accomplish instrumental activities of daily living [2, 17]. Delirium is an acute, fluctuating disturbance in attention and level of consciousness that develops rapidly over hours to days [6, 18]. Episodes of delirium directly accelerate the cognitive decline of major neurocognitive disorder source 5. Conversely, multiple episodes of unexplained delirium in an older adult serve as a vital diagnostic clue pointing toward an underlying, previously undetected major neurocognitive disorder [5, 19]. Etiology and pathophysiology can typically be determined, and multiple neurocognitive disorders may coexist, such as mixed Alzheimer's and vascular disease [16, 20, 21]. **First-line**: Conduct a complete clinical history with the patient and a knowledgeable informant, assess baseline functional capabilities across daily activities, and obtain standardized neuropsychological testing to confirm cognitive decline before formulating a long-term care plan [22-24]. **Board trap**: Do not confuse mild neurocognitive disorder with major neurocognitive disorder based on symptom presence alone. The board exam tests whether the patient can still live independently. If instrumental activities of daily living are preserved, the diagnosis is mild NCD regardless of how much effort the patient expends source 4. **Safety alert**: Recurrent delirium episodes cause irreversible neural damage and accelerate dementia progression source 5. Always perform immediate medical workups to rule out reversible triggers like urinary tract infections, hyponatremia, or deliriogenic drugs before attributing confusion solely to dementia [25-27]. Sample Questions. Question 1. Question: True or False: Most standardized screening instruments for depression are not valid in people over 65 years of age. A) True B) False Pause. Answer: B. Why it is correct: Standardized screening tools like the PHQ-9 are fully validated and routinely utilized in older adults across community and nursing home settings [28, 29]. Why the other choices are wrong: - A) Incorrect because advanced age does not invalidate tools like the PHQ-9 [28, 29]. Question 2. Question: True or False: Advanced age is an independent risk factor for developing depression. A) True B) False Pause. Answer: B. Why it is correct: Advancing age itself is not an independent risk factor for major depression, despite the increased frequency of psychosocial and physical losses in older adults [29, 30]. Why the other choices are wrong: - A) Incorrect because age alone does not cause depression source 30. Question 3. Question: True or False: Most elderly persons who commit suicide do not talk about their plans. A) True B) False Pause. Answer: B. Why it is correct: Older adults frequently express suicidal intent through direct statements, indirect comments, or behavioral cues such as giving away personal belongings source 30. Why the other choices are wrong: - A) Incorrect because elderly individuals often give direct or indirect warnings before suicide source 30. Question 4. Question: True or False: Up to 50 percent of individuals with major neurocognitive disorders also suffer from depression. A) True B) False Pause. Answer: A. Why it is correct: Depression co-occurs in up to 50 percent of patients with major neurocognitive disorders, highlighting the overlapping clinical triad of depression, dementia, and delirium [7, 31]. Why the other choices are wrong: - B) Incorrect because 50 percent co-occurrence is a well-established clinical statistic source 7. Question 5. Question: According to recommendations in the Beers criteria and STOPP/START screening tools, which medication carries a significant risk of orthostatic hypotension in older adults? A) Zolpidem B) Amitriptyline C) Sertraline D) Donepezil Pause. Answer: B. Why it is correct: **Amitriptyline** is a tricyclic antidepressant with potent alpha-1 adrenergic and anticholinergic blockade, creating a severe risk of orthostatic hypotension, falls, and cognitive impairment in older adults [32-35]. Why the other choices are wrong: - A) Zolpidem increases fall and fracture risk through ataxia and sedation, not primary orthostasis source 35. - C) **Sertraline** carries a primary risk of hyponatremia and SIADH rather than orthostatic hypotension [6, 25]. - D) **Donepezil** causes bradycardia and gastrointestinal hypermotility, not tricyclic-level orthostatic hypotension [36, 37]. Question 6. Question: Which of the following is the least likely characteristic of **Alzheimer's disease**? A) Slowly developing impairment of cognitive function B) Chronic condition without reversal C) Perceptual disturbances including hallucinations D) Progressive and irreversible decline Pause. Answer: C. Why it is correct: Early visual hallucinations and perceptual disturbances are characteristic of **Lewy body disease** rather than **Alzheimer's disease** [13, 38]. Why the other choices are wrong: - A) Slowly developing cognitive impairment is a hallmark of **Alzheimer's disease** [21, 38]. - B) Chronic condition without reversal accurately describes **Alzheimer's disease** [38, 39]. - D) Progressive and irreversible decline defines the typical trajectory of **Alzheimer's disease** [38, 39]. Question 7. Question: A 74-year-old male is brought to the clinic for evaluation after recent erratic behavior, including confusion that lasts a few hours at a time up to three times per day over the past month. The caregiver reports he recently started taking a new medication. Which of the following medications is least likely to cause these episodes? A) Diphenhydramine B) Sertraline C) Haloperidol D) Diazepam Pause. Answer: B. Why it is correct: **Sertraline** is an SSRI and is least likely to trigger acute delirium or fluctuating confusion compared to sedating, anticholinergic, or deliriogenic drugs [40, 41]. Why the other choices are wrong: - A) Diphenhydramine is a potent anticholinergic that frequently causes delirium in older adults [33, 41]. - C) **Haloperidol** can trigger or worsen confusion, extrapyramidal symptoms, and delirium [8, 41]. - D) Diazepam is a long-acting benzodiazepine that causes cognitive impairment and sedation [41, 42]. Question 8. Question: Which of the following is least likely to be noted early in a person with **Lewy body disease**? A) Short term memory loss B) Bradykinesia and rigidity C) Visual hallucinations D) REM sleep behavior disorder Pause. Answer: A. Why it is correct: Prominent short-term memory loss is typically a late feature in **Lewy body disease**, whereas visual hallucinations, REM sleep behavior disorder, and parkinsonism present early [12-14]. Why the other choices are wrong: - B) Bradykinesia and rigidity are core early motor features of **Lewy body disease** [12, 14]. - C) Detailed visual hallucinations are a cardinal early diagnostic feature of **Lewy body disease** [13, 14]. - D) REM sleep behavior disorder often precedes cognitive symptoms in **Lewy body disease** by years [13, 14]. Question 9. Question: In what stage of major neurocognitive disorder do **cholinesterase inhibitors** demonstrate the most benefit? A) Mild neurocognitive disorder B) Early **Alzheimer's disease** C) Mild to moderate **Alzheimer's disease** D) Severe **Alzheimer's disease** Pause. Answer: C. Why it is correct: **Cholinesterase inhibitors** like **donepezil**, **rivastigmine**, and **galantamine** demonstrate the greatest clinical efficacy in mild to moderate **Alzheimer's disease** [10, 11, 36]. Why the other choices are wrong: - A) Mild neurocognitive disorder is not routinely treated with **cholinesterase inhibitors** per evidence-based guidelines [11, 40]. - B) Early **Alzheimer's disease** is a less precise stage descriptor than mild to moderate disease source 11. - D) Severe **Alzheimer's disease** is primarily managed with NMDA receptor antagonists like **memantine**, often added to existing **cholinesterase inhibitors** [10, 11, 43]. Question 10. Question: Your patient with major neurocognitive disorder develops severe bradycardia, gait disturbances, rigidity, and tremor after taking a low dose second generation antipsychotic for severe hallucinations. Which neurocognitive disorder type do you suspect? A) **Alzheimer's disease** B) Vascular disease C) Frontotemporal disease D) **Lewy body disease** Pause. Answer: D. Why it is correct: Patients with **Lewy body disease** possess extreme neuroleptic sensitivity, developing severe extrapyramidal symptoms, parkinsonism, or neuroleptic malignant syndrome even with low antipsychotic doses [10, 15, 44]. Why the other choices are wrong: - A) **Alzheimer's disease** does not cause severe acute extrapyramidal rigidity from low dose SGAs source 15. - B) Vascular disease causes stepwise cognitive decline without extreme neuroleptic sensitivity [15, 45]. - C) Frontotemporal disease features early personality or language changes without acute neuroleptic sensitivity [12, 15]. Question 11. Question: Which of the following is least essential to the initial workup for acute mental status change? A) Head CT scan B) Complete blood count C) Comprehensive metabolic panel D) Electrocardiogram Pause. Answer: A. Why it is correct: A head CT scan is least essential in the initial evaluation of acute delirium until systemic, infectious, metabolic, and cardiac causes are investigated with laboratory tests and an ECG source 46. Why the other choices are wrong: - B) A complete blood count is essential to evaluate for systemic infection or sepsis source 46. - C) A comprehensive metabolic panel is essential to evaluate for electrolyte disturbances like hyponatremia or hypoglycemia source 46. - D) An electrocardiogram is essential to evaluate for silent myocardial infarction or dysrhythmias causing cerebral hypoperfusion source 46. Question 12. Question: When assessing a 73-year-old woman with sudden onset mental status change, all of the following initial diagnostic tests would be essential except: A) Serum glucose level B) Urinalysis C) Liver function tests D) HIV test Pause. Answer: D. Why it is correct: An HIV test is not a first-line essential diagnostic test for sudden onset acute delirium in an older adult when immediate reversible medical triggers must be identified [47, 48]. Why the other choices are wrong: - A) Serum glucose is essential because hypoglycemia or severe hyperglycemia rapidly alters consciousness source 47. - B) A urinalysis is essential because urinary tract infections are a primary cause of acute delirium in older adults [47, 49]. - C) Liver function tests are essential to rule out hepatic encephalopathy or acute metabolic dysfunction source 47. Question 13. Question: When considering therapy for a 71-year-old man with mild to moderate depression, the PMHNP considers all of the following except: A) Medication should be started at low dose and then escalated as needed B) Electroconvulsive therapy should be avoided in those over age 65 years C) Renal and hepatic function should be assessed before initiating pharmacotherapy D) Medications with less anticholinergic effect should be preferred Pause. Answer: B. Why it is correct: Electroconvulsive therapy (ECT) is safe, highly effective, and not contraindicated in adults over 65 years of age for severe or treatment-resistant depression [50, 51]. Why the other choices are wrong: - A) Starting low and titrating gradually while monitoring for response is standard geriatric prescribing practice [31, 51]. - C) Assessing baseline renal and hepatic clearance is required before prescribing psychotropics [50, 51]. - D) Selecting agents with minimal anticholinergic burden avoids triggering delirium, urinary retention, and falls [32, 52]. 💡 Would you like to review the specific cognitive domains or explore another Fitzgerald Chapter 14 table next? Next. End of this drive.