About This Page
This is a clinician-written, evidence-based guide aligned to the MCC Examination Objectives. It is structured by clinical presentation — the way the MCCQE tests and the way patients actually present. Management reflects current Canadian guidelines (CMA, CFPC, CPS). Always cross-reference with institutional protocols and clinical judgment.
The Bottom Line
- Frailty is reduced physiologic reserve with vulnerability to stressors; functional decline is often the presenting symptom of acute illness in older adults
- Never assume decline is just ageing — search for delirium, infection, medication toxicity, falls/fracture, dehydration, pain, depression, dementia, malnutrition, and elder abuse
- Assess baseline versus current function: ADLs, IADLs, mobility, falls, cognition, continence, nutrition, mood, medications, home safety, and caregiver support
- The Clinical Frailty Scale is a practical Canadian-developed tool to summarize global fitness/frailty after clinical assessment
- Management is interdisciplinary: treat precipitants, deprescribe, mobilize, optimize nutrition, prevent delirium/falls, support caregivers, and clarify goals of care
Approach to the Presentation
Frailty and functional decline are presentation-based problems: the patient may arrive with not coping, falls, reduced mobility, confusion, poor intake, weight loss, fatigue, incontinence, or caregiver burnout. Establish baseline function and cognition before the decline, then identify acute precipitants and chronic contributors. Ask collateral from family/caregivers, review medications including over-the-counter sedatives and anticholinergics, and assess pain, falls, continence, nutrition, mood, cognition, alcohol, vision/hearing, finances, and home safety. Examine vitals including orthostatics, hydration, cardiopulmonary system, abdomen, skin/pressure areas, gait, neurological status, joints, feet, and mental status.
Differential Diagnosis
| diagnosis | likelihood | key features | distinguishing test |
|---|---|---|---|
| Delirium from acute illness | must-not-miss | Acute fluctuating attention/cognition, altered sleep-wake cycle, infection, dehydration, hypoxia, constipation, urinary retention, pain | CAM/4AT, vitals, medication review, targeted labs and imaging based on symptoms |
| Medication toxicity / polypharmacy | must-not-miss | Falls, confusion, sedation, orthostasis, anticholinergic burden, opioids, benzodiazepines, antihypertensives, hypoglycaemics | Medication reconciliation including OTC; renal function; deprescribing review |
| Occult infection or sepsis | must-not-miss | Functional decline, delirium, falls, reduced intake; fever may be absent; respiratory, urinary, skin, abdominal sources | Targeted infectious workup based on symptoms/signs; avoid urine testing for nonspecific confusion alone |
| Fall with fracture or intracranial injury | must-not-miss | New immobility, pain, anticoagulation, head strike, hip/groin pain, inability to weight-bear | Focused exam, X-ray hip/pelvis, CT head when indicated |
| Elder abuse or neglect | must-not-miss | Injuries, poor hygiene, malnutrition, fearfulness, caregiver inconsistency, financial concerns, delayed presentation | Private interview, collateral, social work/adult protection involvement according to provincial pathways |
| Depression / grief / social isolation | common | Low mood, anhedonia, poor appetite, sleep change, hopelessness, bereavement, loneliness | Geriatric depression screen; suicide risk; collateral history |
| Dementia progression | common | Gradual decline in memory/executive function, IADL impairment, medication/finance errors, wandering | MoCA/MMSE, collateral functional history, reversible-cause labs as indicated |
| Malnutrition, sarcopenia, dehydration | common | Weight loss, low intake, poor dentition, dysphagia, weakness, pressure injuries | Weight trend, nutrition screen, swallowing/oral assessment, electrolytes/renal function |
| Orthostatic hypotension and cardiovascular disease | common | Falls/syncope, postural dizziness, antihypertensives/diuretics, dehydration, arrhythmia, HF | Orthostatic vitals, ECG, medication review, BNP/echo if HF suspected |
| Parkinsonism or neurological disease | less common | Slow gait, rigidity, tremor, freezing, autonomic symptoms, stroke signs, neuropathy | Neurological exam, medication review, imaging if focal or acute signs |
Red Flags & Key History
Symptoms
Acute confusion, fluctuating attention, reduced consciousness
Fall with head strike, anticoagulation, inability to weight-bear, severe pain
Rapid weight loss, night sweats, bleeding, or new severe pain
Unsafe wandering, fire risk, medication errors, or inability to eat/drink safely
Signs of neglect, fear, unexplained bruising, or financial coercion
Gradual IADL decline before ADL decline
Polypharmacy, recent medication change, sedatives, anticholinergics, opioids
Signs
Hypotension, hypoxia, fever/hypothermia, tachycardia, dehydration
Focal neurological deficit, new gait asymmetry, reduced consciousness
Hip shortening/external rotation, vertebral tenderness, bruising
Pressure injuries, poor hygiene, malnutrition, oral/dental disease
Slow gait speed, weak grip, sarcopenia, difficulty rising from chair
Approach to Investigation
First-line
Baseline/current function assessmentADLs, IADLs, mobility aids, falls, continence, cognition, nutrition, mood, home supports, caregiver capacity
Medication reconciliation and deprescribing reviewInclude OTC sleep aids, anticholinergics, benzodiazepines, opioids, antihypertensives, hypoglycaemics, alcohol/cannabis
Vitals including orthostatics, oxygen saturation, weightDetect dehydration, infection, hypoxia, orthostasis, and trajectory
CBC, electrolytes/creatinine, glucose, calcium, TSH, B12 when indicatedUseful for delirium, falls, weakness, cognitive decline, malnutrition, and reversible contributors
Second-line
Urinalysis/culture only with urinary or systemic featuresAvoid urine testing for older adults with nonspecific mental status change unless there is evidence of infection
ECG, CXR, imagingTarget to symptoms: syncope, dyspnea, chest pain, hypoxia, trauma, focal neurological signs, suspected fracture
Cognitive and mood screeningMoCA/MMSE after delirium excluded or resolved; PHQ-9/GDS for depression
Clinical Frailty ScaleCanadian-developed scale summarizing fitness/frailty; use baseline state, not acute illness alone
Specialist
Geriatric medicine / comprehensive geriatric assessmentMultifactorial decline, recurrent falls, frailty, polypharmacy, cognitive impairment, caregiver crisis
Physiotherapy/occupational therapyMobility, falls prevention, transfer safety, equipment, home assessment
Social work / adult protectionUnsafe home, caregiver burnout, neglect/abuse, food insecurity, finances, placement planning
Management Principles
Canadian Frailty Network principles + Clinical Frailty Scale use1
Treat acute precipitants
- Delirium: identify and treat infection, dehydration, hypoxia, pain, constipation, urinary retention, and medication toxicity
- Falls/fracture: analgesia, imaging, mobilization plan, osteoporosis assessment, and home safety
- Medication harm: deprescribe high-risk drugs and simplify regimens
2
Frailty intervention
- Progressive strength/balance activity as tolerated, physiotherapy, mobility aids
- Protein/energy nutrition optimisation, vitamin D/calcium when appropriate, dentition and swallowing support
- Vaccination, chronic disease optimisation, hearing/vision correction, continence care
3
Delirium and falls prevention
- Orienting cues, sleep hygiene, glasses/hearing aids, hydration, early mobilization, avoid restraints and unnecessary catheters
- Review orthostatic hypotension, footwear, home hazards, alcohol/sedatives, and bone health
4
Care planning
- Clarify goals of care and substitute decision-maker while the patient has capacity
- Engage caregivers and community supports; assess caregiver strain
- Escalate to home care, rehab, geriatric day hospital, or long-term care assessment when safety requires
Complications & Pitfalls
- Ageism: Functional decline is not normal ageing until acute disease, medications, mood, cognition, nutrition, and social factors are assessed.
- Delirium missed as dementia: Acute fluctuating inattention is delirium and is a medical emergency in older adults.
- Urine culture overuse: Asymptomatic bacteriuria is common and treating it can cause harm.
- Hospital harms: Immobility, sleep disruption, catheters, antipsychotics, and restraints can worsen frailty and delirium.
- Ignoring caregivers: Caregiver burnout can precipitate presentation and must be assessed directly.
MCCQE1 Exam Tips
- 1Older adult with sudden decline = delirium until proven otherwise; do not label as dementia without time course
- 2Choosing Wisely Canada trap: do not test/treat urine in an older patient with confusion alone unless there is evidence of infection
- 3Clinical Frailty Scale is Canadian-developed and commonly used; score baseline, not acute illness appearance alone
- 4Falls assessment includes orthostatic vitals, medications, vision, gait/balance, feet/footwear, home hazards, and bone health
- 5Polypharmacy causes falls, fatigue, anorexia, delirium, and functional decline
- 6CanMEDS collaborator/health advocate: involve family, home care, OT/PT, pharmacy, social work, and community resources
- 7Frailty changes pre-operative risk and goals-of-care discussions even when traditional cardiac risk seems acceptable
practicetest your knowledge on frailty & functional decline in the elderlyApply what you've learnt with MCCQE1-style questions from the iatroX Q-Bank — general & constitutional and beyond.
open q-bank