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ABPTS GCS study materials
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ABPTS GCS practice questions

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Question 1Foundation Sciences and Clinical Reasoning in Geriatric Physical Therapy

Which age-related change in the cardiovascular system most directly reduces maximal oxygen consumption in older adults?

  1. Decreased peripheral venous capacitance
  2. Reduced resting heart rate variability
  3. Thickening of the ventricular myocardium
  4. Increased arterial stiffness with elevated systolic afterload Correct answer.

Explanation

Aging increases central arterial stiffness, which raises systolic pressure and afterload and limits the maximal cardiac output achievable during exercise, thereby lowering peak oxygen uptake. The other listed changes are real or plausible but do not primarily determine the age-related decline in maximal aerobic capacity.

Question 2Foundation Sciences and Clinical Reasoning in Geriatric Physical Therapy

Loss of type II muscle fibers and motor units with aging is most directly associated with which functional decline?

  1. Decreased resting muscle blood flow
  2. Slower rapid force production Correct answer.
  3. Impaired glucose tolerance
  4. Reduced joint proprioception

Explanation

Selective atrophy and loss of fast-twitch fibers and their motor units reduce the ability to generate force rapidly, which shows up as slower rate of force development and power. This underlies difficulties with tasks requiring quick responses such as recovering from a stumble.

Question 3Foundation Sciences and Clinical Reasoning in Geriatric Physical Therapy

Which statement best describes the normal age-related change in bone mineral density in postmenopausal women?

  1. Steady increase until age 80 then plateau
  2. No change attributable to hormonal status
  3. Accelerated loss in the years immediately after menopause Correct answer.
  4. Loss confined to cortical bone with trabecular preservation

Explanation

Estrogen withdrawal after menopause produces a period of accelerated bone loss, particularly of trabecular bone, before loss settles into a slower age-related trajectory. This is why fracture risk rises disproportionately in the early postmenopausal years.

Question 4Foundation Sciences and Clinical Reasoning in Geriatric Physical Therapy

A therapist notes that an 82-year-old requires a wider stance and shorter steps when walking. Which sensorimotor change best explains this adaptation?

  1. Decreased joint stiffness
  2. Increased visual acuity
  3. Enhanced ankle plantarflexor strength
  4. Reduced vestibular and somatosensory integration Correct answer.

Explanation

Age-related decline in vestibular and somatosensory function reduces postural stability, prompting a wider base of support and shorter steps as a compensatory strategy. The other options describe changes that would tend to improve rather than degrade balance.

Question 5Foundation Sciences and Clinical Reasoning in Geriatric Physical Therapy

Which pulmonary change is expected in a healthy 75-year-old?

  1. Increased alveolar surface area
  2. Increased residual volume and reduced vital capacity Correct answer.
  3. Increased elastic recoil of the lung parenchyma
  4. Increased chest wall compliance

Explanation

Loss of elastic recoil and stiffening of the chest wall lead to air trapping, so residual volume rises and vital capacity falls with age. These changes reduce ventilatory reserve without necessarily causing resting hypoxemia.

Question 6Foundation Sciences and Clinical Reasoning in Geriatric Physical Therapy

Which concept from motor learning best justifies using variable, real-world practice conditions for an older adult relearning balance?

  1. Blocked practice enhances immediate performance
  2. Massed practice maximizes retention
  3. Part-task practice always outperforms whole-task practice
  4. Schema theory supports variability in practice Correct answer.

Explanation

Schema theory holds that varied practice builds a generalized motor program and rules for parameterizing movements, improving transfer and retention. Variable conditions therefore prepare patients for unpredictable environments better than rote repetition.

Question 7Foundation Sciences and Clinical Reasoning in Geriatric Physical Therapy

According to the International Classification of Functioning, Disability and Health, a patient's ability to walk to the bathroom independently is classified as which domain?

  1. Environmental factor
  2. Body structure
  3. Activity Correct answer.
  4. Body function

Explanation

In the ICF framework, activity refers to the execution of tasks and actions by an individual, such as walking to a destination. Body functions and structures describe physiologic and anatomic status, while environmental factors are external contextual influences.

Question 8Foundation Sciences and Clinical Reasoning in Geriatric Physical Therapy

Which finding most strongly suggests that a fall in an older adult was due to an intrinsic rather than an extrinsic cause?

  1. Being pushed by a crowd in a hallway
  2. Tripping over a loose rug in dim lighting
  3. Slipping on wet pavement outdoors
  4. Falling after a sudden episode of vertigo while standing still Correct answer.

Explanation

A fall occurring without an external perturbation, triggered by an internal event such as vertigo, points to an intrinsic cause related to the person's own physiology. Extrinsic causes involve environmental hazards or external forces.

Question 9Foundation Sciences and Clinical Reasoning in Geriatric Physical Therapy

Which physiologic rationale best supports resistance training in frail older adults?

  1. It reduces resting blood pressure to youthful levels
  2. It increases muscle protein synthesis and cross-sectional area Correct answer.
  3. It eliminates the need for balance training
  4. It reverses age-related loss of motor neurons

Explanation

Resistance training stimulates muscle protein synthesis and hypertrophy, increasing strength and lean mass even in frail elders. It does not restore lost motor neurons or replace other training domains.

Question 10Foundation Sciences and Clinical Reasoning in Geriatric Physical Therapy

Which clinical reasoning error is illustrated when a therapist attributes an older patient's new confusion solely to dementia without considering delirium?

  1. Premature closure Correct answer.
  2. Availability heuristic
  3. Confirmation bias
  4. Anchoring bias

Explanation

Premature closure occurs when a clinician accepts a diagnosis before adequately considering alternatives. Here, settling on dementia without evaluating acute delirium reflects that premature stop in reasoning.

Question 11Foundation Sciences and Clinical Reasoning in Geriatric Physical Therapy

Which age-related change in the somatosensory system most contributes to impaired balance on uneven surfaces?

  1. Enhanced two-point discrimination
  2. Increased density of plantar mechanoreceptors
  3. Faster peripheral nerve conduction velocity
  4. Reduced vibration and proprioceptive acuity in the lower extremities Correct answer.

Explanation

Aging reduces the number and function of mechanoreceptors and slows peripheral conduction, degrading proprioceptive and vibratory input from the feet. Poorer sensory feedback impairs postural corrections on unpredictable surfaces.

Question 12Foundation Sciences and Clinical Reasoning in Geriatric Physical Therapy

A 78-year-old with knee osteoarthritis reports pain that worsens with activity and eases with rest. Which pathophysiologic feature of osteoarthritis best explains this pattern?

  1. Mechanical loading of degraded articular cartilage and subchondral bone Correct answer.
  2. Acute bacterial joint infection
  3. Systemic inflammatory cytokine storm
  4. Autoimmune destruction of the synovium

Explanation

Osteoarthritis involves cartilage degradation and subchondral bone changes that make the joint painful under mechanical load, so symptoms track with activity. Rest reduces loading and therefore pain.

Question 13Foundation Sciences and Clinical Reasoning in Geriatric Physical Therapy

Which change in pharmacokinetics most increases the risk of drug toxicity in older adults?

  1. Increased hepatic first-pass metabolism
  2. Decreased renal clearance of drugs Correct answer.
  3. Increased total body water
  4. Increased serum albumin binding

Explanation

Glomerular filtration declines with age, reducing renal clearance of many drugs and their metabolites and prolonging half-life. This raises the risk of accumulation and toxicity for renally cleared medications.

Question 14Foundation Sciences and Clinical Reasoning in Geriatric Physical Therapy

Which screening threshold is commonly used to identify low bone mineral density warranting further evaluation in older adults?

  1. A T-score of -2.5 or lower Correct answer.
  2. A T-score of -1.0 or lower
  3. A Z-score of +1.0 or higher
  4. A T-score of 0.0 or lower

Explanation

A T-score of -2.5 or lower defines osteoporosis by dual-energy x-ray absorptiometry criteria, indicating bone density at least 2.5 standard deviations below the young adult mean. Values between -1.0 and -2.5 indicate osteopenia.

Question 15Foundation Sciences and Clinical Reasoning in Geriatric Physical Therapy

Which physiologic mechanism best explains orthostatic hypotension in an older adult after prolonged bed rest?

  1. Increased circulating blood volume
  2. Increased baroreceptor sensitivity
  3. Impaired baroreflex-mediated vasoconstriction Correct answer.
  4. Excessive venous return to the heart

Explanation

Deconditioning and age-related baroreflex blunting reduce the ability to vasoconstrict and increase heart rate on standing, so blood pressure falls when posture changes. Prolonged bed rest worsens this through volume and reflex deconditioning.

Question 16Foundation Sciences and Clinical Reasoning in Geriatric Physical Therapy

Which statement about gait speed is most accurate for geriatric assessment?

  1. Gait speed cannot be measured reliably in older adults
  2. Gait speed below 0.8 m/s is associated with increased adverse outcomes Correct answer.
  3. Gait speed is useful only for patients with neurologic disease
  4. Gait speed is unrelated to survival

Explanation

Gait speed is a simple, reliable marker of overall health and function; values below roughly 0.8 m/s are associated with higher risk of adverse outcomes including disability and mortality. It can be measured reliably in most older adults regardless of diagnosis.

Question 17Foundation Sciences and Clinical Reasoning in Geriatric Physical Therapy

Which mechanism underlies the increased risk of falls associated with polypharmacy in older adults?

  1. Cumulative effects on blood pressure, cognition, and sedation Correct answer.
  2. Enhanced renal excretion of sedatives
  3. Improved postural control from antihypertensive therapy
  4. Reduced drug interactions due to lower enzyme activity

Explanation

Multiple medications can additively cause hypotension, sedation, and cognitive impairment, all of which impair postural control and increase fall risk. The problem is cumulative central and hemodynamic effects, not improved function.

Question 18Foundation Sciences and Clinical Reasoning in Geriatric Physical Therapy

Which concept explains why an older adult's performance on a single balance test may underestimate fall risk in daily life?

  1. Test-retest reliability
  2. Ecological validity Correct answer.
  3. Ceiling effect
  4. Interrater reliability

Explanation

Ecological validity refers to how well a test reflects real-world conditions. A static balance test in a quiet clinic may not capture the divided attention and environmental demands that provoke falls in daily life.

Question 19Foundation Sciences and Clinical Reasoning in Geriatric Physical Therapy

Which age-related change in joint connective tissue contributes to reduced flexibility?

  1. Increased water content of cartilage
  2. Cross-linking of collagen and reduced elastin Correct answer.
  3. Increased synovial fluid viscosity with enhanced lubrication
  4. Decreased collagen cross-linking

Explanation

Aging increases collagen cross-linking and reduces elastin, making tendons, ligaments, and joint capsules stiffer and less extensible. This contributes to reduced range of motion.

Question 20Foundation Sciences and Clinical Reasoning in Geriatric Physical Therapy

A therapist designs a program to reduce fall risk by challenging the sensory systems involved in balance. Which intervention best targets sensory reweighting?

  1. Performing seated biceps curls
  2. Practicing standing on foam with eyes closed Correct answer.
  3. Stretching the hamstrings
  4. Practicing bed mobility

Explanation

Standing on foam with eyes closed removes reliable somatosensory and visual cues, forcing reliance on vestibular input and training the nervous system to reweight sensory information. This directly targets sensory integration for balance.

Question 21Foundation Sciences and Clinical Reasoning in Geriatric Physical Therapy

Which factor most strongly predicts functional decline after hospitalization in an older adult?

  1. Pre-existing low physical function and prolonged immobility Correct answer.
  2. Admission for a planned minor procedure
  3. Male sex alone
  4. High baseline gait speed

Explanation

Baseline functional status and the duration of immobility during hospitalization are strong predictors of post-discharge functional decline. Patients with low pre-existing function and longer bed rest lose more functional capacity.

Question 22Foundation Sciences and Clinical Reasoning in Geriatric Physical Therapy

Which statement about sarcopenia is most accurate?

  1. It affects only adults over age 90
  2. It refers only to loss of muscle mass
  3. It involves loss of muscle mass and strength with adverse outcomes Correct answer.
  4. It is defined solely by body mass index

Explanation

Sarcopenia is currently conceptualized as low muscle mass together with low strength or physical performance, and it predicts falls, disability, and mortality. Defining it by mass alone misses the functional dimension.

Question 23Foundation Sciences and Clinical Reasoning in Geriatric Physical Therapy

Which mechanism best explains why cognitive dual-task interference increases fall risk in older adults?

  1. Increased automaticity of gait
  2. Enhanced cerebellar processing speed
  3. Competition for limited attentional resources Correct answer.
  4. Reduced reliance on executive function

Explanation

Walking while performing a cognitive task draws on shared attentional resources; when these are limited, gait control degrades. Dual-task paradigms reveal this competition and predict falls.

Question 24Foundation Sciences and Clinical Reasoning in Geriatric Physical Therapy

Which principle of exercise prescription is most important when initiating aerobic training in a deconditioned older adult?

  1. Eliminate warm-up to save session time
  2. Start at low intensity and progress gradually Correct answer.
  3. Begin at high intensity to accelerate gains
  4. Avoid monitoring heart rate

Explanation

Deconditioned older adults should begin at low intensity and progress gradually to allow physiologic adaptation and reduce injury or cardiac risk. Warm-up and appropriate monitoring further support safety.

Question 25Foundation Sciences and Clinical Reasoning in Geriatric Physical Therapy

Which change in postural control strategy is typically observed in older adults compared with younger adults during quiet standing?

  1. Faster reactive stepping
  2. Complete absence of postural sway
  3. Increased ankle strategy dominance with minimal sway
  4. Greater reliance on hip strategy with larger sway Correct answer.

Explanation

Older adults often shift toward hip strategies and show increased postural sway during quiet standing as distal strength and sensory acuity decline. This reflects reduced stability and altered neuromuscular control.

Question 26Foundation Sciences and Clinical Reasoning in Geriatric Physical Therapy

Which term describes the age-related loss of muscle mass and strength that contributes to mobility limitation in older adults?

  1. Fibrosis
  2. Cachexia
  3. Sarcopenia Correct answer.
  4. Osteopenia

Explanation

Sarcopenia is the progressive loss of skeletal muscle mass and strength with aging and is a key contributor to mobility decline and falls. Osteopenia refers to reduced bone mineral density, and cachexia is disease-related wasting rather than a primary aging process.

Question 27Foundation Sciences and Clinical Reasoning in Geriatric Physical Therapy

An older adult's resting heart rate and blood pressure respond slowly at the start of an exercise session. Which age-related cardiovascular change best explains this delayed response?

  1. Increased arterial wall stiffness
  2. Reduced beta-adrenergic receptor responsiveness Correct answer.
  3. Decreased left ventricular ejection fraction at baseline
  4. Elevated resting parasympathetic tone

Explanation

Aging reduces beta-adrenergic receptor sensitivity, so heart rate and contractility rise more slowly when sympathetic outflow increases at exercise onset. This blunted chronotropic response means longer warm-ups are needed before training intensity is advanced.

Question 28Foundation Sciences and Clinical Reasoning in Geriatric Physical Therapy

A 74-year-old reports dizziness when rising from a chair and has a 20 mmHg drop in systolic pressure on standing. Which intervention is most appropriate to address this finding during therapy?

  1. Instruct the patient to stand quickly to promote cardiovascular conditioning
  2. Apply firm abdominal compression and teach gradual position changes Correct answer.
  3. Increase the intensity of lower extremity resistance training immediately
  4. Keep the patient seated for the entire session to prevent symptoms

Explanation

Orthostatic hypotension is managed by slowing position transitions and using countermeasures such as compression and muscle pumping to limit venous pooling. Rapid standing or prolonged inactivity worsens symptoms or deconditions the patient.

Question 29Foundation Sciences and Clinical Reasoning in Geriatric Physical Therapy

A therapist uses a standardized tool to estimate an older adult's probability of falling and finds a high score. Which property of a screening tool most directly determines its value for this purpose?

  1. Its interrater agreement among different clinicians
  2. Its test-retest reliability across repeated administrations
  3. Its sensitivity for identifying those who will fall Correct answer.
  4. Its responsiveness to change over a course of therapy

Explanation

For a fall-risk screen, the key property is sensitivity, because missing a person at risk carries serious consequences. Reliability and responsiveness matter for other purposes but do not by themselves establish the tool's ability to detect those at risk.

Question 30Foundation Sciences and Clinical Reasoning in Geriatric Physical Therapy

An older adult with mild cognitive impairment performs well on the Berg Balance Scale in the clinic but falls frequently at home. Which concept best explains this discrepancy?

  1. Frequent falls at home reflect environmental hazards rather than balance
  2. The patient's balance is overestimated by the test's scoring rubric
  3. The test lacks sufficient ceiling to detect high-level balance
  4. Clinic testing fails to capture the divided-attention demands of daily life Correct answer.

Explanation

Standard balance tests are performed under quiet, single-task conditions, whereas everyday mobility often requires walking while attending to other demands. Dual-task interference from cognitive load can reveal balance limitations that single-task clinic testing misses.

Question 31Examination, Evaluation, Diagnosis, and Prognosis in Older Adults

Which finding on the Timed Up and Go test is most commonly used to identify older adults at increased fall risk in community settings?

  1. A completion time of 5 seconds
  2. A completion time of 10 seconds
  3. A completion time of 12 seconds or more Correct answer.
  4. A completion time of 8 seconds

Explanation

The Timed Up and Go is a mobility and fall-risk screen; a cutoff of about 12 seconds or longer is widely used to flag increased fall risk in community-dwelling older adults. Faster times generally indicate better mobility. Interpretation should be combined with clinical context.

Question 32Examination, Evaluation, Diagnosis, and Prognosis in Older Adults

A 78-year-old reports three falls in the past year but no syncope, and has a normal neurologic exam. According to common fall-risk frameworks, how should the number of prior falls be interpreted?

  1. It is not meaningful unless injury occurred
  2. It is relevant only if the falls happened indoors
  3. It reflects only environmental hazards
  4. It is a strong independent predictor of future falls Correct answer.

Explanation

A history of falls, and especially recurrent falls, is one of the strongest predictors of future falls in older adults. It warrants multifactorial assessment regardless of injury or location. Environmental hazards may contribute but do not explain away the risk.

Question 33Examination, Evaluation, Diagnosis, and Prognosis in Older Adults

Which gait observation most directly suggests fear of falling or cautious gait in an older adult walking without an aid?

  1. Narrow base with long strides
  2. Increased arm swing with fast cadence
  3. Wide base with shortened steps and reduced velocity Correct answer.
  4. Heel-strike with full knee extension

Explanation

Cautious gait associated with fear of falling is characterized by a widened base, shortened step length, and reduced walking speed. These features help preserve stability but limit mobility. Fast, long-strided gait is not typical of cautious gait.

Question 34Examination, Evaluation, Diagnosis, and Prognosis in Older Adults

During screening of an 82-year-old, which single question is most efficient for identifying those who need a fuller cognitive evaluation?

  1. Asking the patient to spell a word forward
  2. Asking the patient to recall three words after a delay Correct answer.
  3. Asking the patient to count backward from 20
  4. Asking the patient to name the current season

Explanation

Delayed recall of three words is a sensitive screen for memory impairment and is embedded in brief tools such as the Mini-Cog. It captures encoding and retrieval, which are affected early in dementia. Single orientation or attention items alone are less discriminating.

Question 35Examination, Evaluation, Diagnosis, and Prognosis in Older Adults

An older adult with knee osteoarthritis reports activity-related pain and stiffness lasting less than 30 minutes in the morning. Which feature best supports osteoarthritis over an inflammatory arthritis?

  1. Symmetrical small-joint swelling
  2. Pain that worsens with activity and eases with rest Correct answer.
  3. Systemic fever and weight loss
  4. Prolonged morning stiffness exceeding one hour

Explanation

Osteoarthritis classically produces pain that is worse with use and relieved by rest, with brief morning stiffness. Inflammatory arthritides typically cause prolonged morning stiffness and systemic features. Symmetric small-joint involvement also favors inflammatory disease.

Question 36Examination, Evaluation, Diagnosis, and Prognosis in Older Adults

A 75-year-old with diabetes and peripheral neuropathy has intact monofilament sensation but reduced vibration sense at the toes. Which interpretation is most accurate?

  1. Vibration loss with intact monofilament is clinically irrelevant
  2. Vibration loss confirms a central lesion
  3. Vibration loss may precede monofilament loss in length-dependent neuropathy Correct answer.
  4. Monofilament testing should be repeated daily

Explanation

In length-dependent peripheral neuropathy, large-fiber modalities such as vibration can be impaired before protective sensation as tested by monofilament is lost. Both findings inform risk of ulceration and falls. Monofilament testing is not a daily measure.

Question 37Examination, Evaluation, Diagnosis, and Prognosis in Older Adults

Which measure is most appropriate for documenting baseline and change in basic self-care independence in an older adult?

  1. The Visual Analog Scale for pain
  2. The Berg Balance Scale
  3. The Katz Index of Independence in Activities of Daily Living Correct answer.
  4. The Mini-Mental State Examination

Explanation

The Katz Index assesses basic activities of daily living such as bathing, dressing, and toileting, making it suitable for tracking self-care independence. The Berg measures balance, the MMSE measures cognition, and the VAS measures pain intensity.

Question 38Examination, Evaluation, Diagnosis, and Prognosis in Older Adults

A clinician suspects orthostatic hypotension in an older adult with dizziness on standing. Which finding best supports that diagnosis?

  1. A rise in systolic pressure of 15 mm Hg on standing
  2. A drop in systolic pressure of 20 mm Hg or more within three minutes of standing Correct answer.
  3. A resting heart rate of 70 beats per minute
  4. A stable blood pressure with positional vertigo

Explanation

Orthostatic hypotension is defined by a systolic drop of at least 20 mm Hg or a diastolic drop of at least 10 mm Hg within three minutes of standing. This finding links dizziness to a fall-relevant cardiovascular cause. Stable pressures or a rise in pressure do not support the diagnosis.

Question 39Examination, Evaluation, Diagnosis, and Prognosis in Older Adults

An 80-year-old with mild cognitive impairment is being evaluated for fall risk. Which combination of tests best captures both mobility and executive function contributions to gait?

  1. Timed Up and Go alone
  2. Single-leg stance alone
  3. Grip strength alone
  4. Timed Up and Go combined with a dual-task walking condition Correct answer.

Explanation

Dual-task walking adds a cognitive load that reveals executive-function contributions to gait and can unmask instability not seen on single-task testing. Combining it with the Timed Up and Go improves detection of fall risk in cognitive impairment. Single measures capture only one domain.

Question 40Examination, Evaluation, Diagnosis, and Prognosis in Older Adults

A 79-year-old has a positive screen on the Mini-Cog but performs all basic ADLs independently. What is the most appropriate next step in evaluation?

  1. Reassure the patient because ADLs are intact
  2. Discontinue cognitive screening
  3. Refer for a fuller cognitive and functional assessment Correct answer.
  4. Begin gait training as the only intervention

Explanation

A positive brief screen indicates need for more comprehensive cognitive and functional evaluation to establish diagnosis and baseline. Intact basic ADLs do not exclude impairment, since instrumental activities often decline first. Reassurance or stopping assessment would miss treatable and progressive conditions.

Question 41Examination, Evaluation, Diagnosis, and Prognosis in Older Adults

An older adult with Parkinson disease shows reduced stride length, festination, and impaired postural responses. Which prognostic implication is most accurate?

  1. These features predict increased fall risk and need for targeted balance intervention Correct answer.
  2. These features are unrelated to fall risk
  3. These features indicate a benign gait variant
  4. These features predict a lower risk of falls than in age-matched peers

Explanation

Reduced stride length, festination, and impaired postural responses are hallmarks of parkinsonian gait that increase fall risk. Targeted balance and gait training is indicated. These features are not benign and do not lower risk.

Question 42Examination, Evaluation, Diagnosis, and Prognosis in Older Adults

A 76-year-old with heart failure reports exertional dyspnea and fatigue limiting walking. Which evaluation approach best informs safe exercise prescription?

  1. Assessing functional capacity with a standardized walk test and monitoring response Correct answer.
  2. Assuming exercise is contraindicated
  3. Using only grip strength as a proxy
  4. Relying solely on resting vital signs

Explanation

A standardized walk test with monitoring of symptoms and vital signs estimates functional capacity and guides safe exercise intensity. Resting vital signs alone do not reflect exertional tolerance. Exercise is generally beneficial when appropriately prescribed.

Question 43Examination, Evaluation, Diagnosis, and Prognosis in Older Adults

Which finding on the Berg Balance Scale score is most consistent with increased fall risk in a community-dwelling older adult?

  1. A score of 52 out of 56
  2. A score of 56 out of 56
  3. A score of 45 out of 56
  4. A score of 30 out of 56 Correct answer.

Explanation

Lower Berg scores indicate poorer balance; scores below roughly 45, and particularly in the 30s, are associated with increased fall risk. Higher scores near the maximum reflect better balance. Interpretation is combined with history and other measures.

Question 44Examination, Evaluation, Diagnosis, and Prognosis in Older Adults

An older adult presents with acute onset of severe vertigo, nystagmus, and inability to stand. Which feature most raises concern for a central rather than peripheral cause?

  1. Direction-changing nystagmus with truncal instability Correct answer.
  2. Unidirectional horizontal nystagmus suppressed by fixation
  3. Nausea with vomiting
  4. Vertigo worsened by head position changes

Explanation

Direction-changing nystagmus and severe truncal instability suggest a central vestibular lesion and warrant urgent evaluation. Peripheral causes typically show unidirectional nystagmus suppressed by visual fixation. Nausea and positional provocation occur in both but are not central-specific.

Question 45Examination, Evaluation, Diagnosis, and Prognosis in Older Adults

A 74-year-old with dementia becomes agitated during a physical therapy session. Which approach best reflects appropriate evaluation and management?

  1. Terminate all future therapy
  2. Proceed rapidly to finish before agitation worsens
  3. Restrain the patient to complete the assessment
  4. Identify triggers and modify the environment and approach Correct answer.

Explanation

Agitation in dementia is often triggered by environmental, sensory, or communication factors; identifying and modifying triggers is the preferred first step. Restraint or rushing escalates distress. Abandoning therapy entirely is unnecessary when the approach can be adapted.

Question 46Examination, Evaluation, Diagnosis, and Prognosis in Older Adults

Which finding best indicates sarcopenia in an older adult during evaluation?

  1. Elevated resting heart rate
  2. Isolated joint stiffness
  3. Low muscle strength with reduced muscle mass Correct answer.
  4. Normal strength with high body fat

Explanation

Sarcopenia is defined by low muscle strength, with reduced muscle mass and/or performance supporting the diagnosis. It is linked to falls, disability, and mortality. Joint stiffness, isolated adiposity, or heart rate do not define sarcopenia.

Question 47Examination, Evaluation, Diagnosis, and Prognosis in Older Adults

A 77-year-old with osteoporosis and a prior vertebral fracture reports new back pain after a minor slip. Which action is most appropriate?

  1. Discontinue all weight-bearing activity permanently
  2. Ignore the pain because prior fracture explains it
  3. Assume muscular strain and begin aggressive extension exercises
  4. Screen for a new fracture before progressing activity Correct answer.

Explanation

New pain after minor trauma in osteoporosis raises concern for a new fragility fracture, which should be evaluated before activity progression. Aggressive exercise could worsen an unstable fracture. Permanent activity restriction is not warranted once assessed.

Question 48Examination, Evaluation, Diagnosis, and Prognosis in Older Adults

Which test is most appropriate for assessing instrumental activities of daily living such as medication management and finances?

  1. Katz Index
  2. Lawton Instrumental Activities of Daily Living Scale Correct answer.
  3. Numeric Pain Rating Scale
  4. Berg Balance Scale

Explanation

The Lawton scale assesses instrumental activities such as managing finances, medications, and shopping, which are more complex than basic self-care. The Katz Index covers basic ADLs. Balance and pain scales assess different constructs.

Question 49Examination, Evaluation, Diagnosis, and Prognosis in Older Adults

An 81-year-old with peripheral arterial disease reports calf pain after walking two blocks that resolves with rest. Which interpretation best guides evaluation?

  1. This suggests neuropathic pain unrelated to walking distance
  2. This is normal aging and needs no further assessment
  3. This is classic claudication and warrants vascular and functional assessment Correct answer.
  4. This indicates a musculoskeletal strain requiring only rest

Explanation

Reproducible calf pain provoked by a consistent walking distance and relieved by rest is classic intermittent claudication, warranting vascular evaluation and functional assessment. It is not simply normal aging or a strain. The distance-dependent pattern points to a vascular cause.

Question 50Examination, Evaluation, Diagnosis, and Prognosis in Older Adults

A 79-year-old scores poorly on a cognitive screen and also has depression. Which concept best guides interpretation of the cognitive result?

  1. Cognitive testing should be avoided in depression
  2. Depression has no effect on cognitive testing
  3. Depression can depress cognitive performance and should be addressed Correct answer.
  4. Cognitive scores are always valid regardless of mood

Explanation

Depression can impair attention and performance on cognitive testing, sometimes called pseudodementia, and should be assessed and treated. Re-testing after mood improves helps clarify the picture. Cognitive testing remains useful when interpreted with mood in mind.