BRITISH
COLUMBIA
MEDICAL
ASSOCIATION
Cognitive Impairment in the Elderly –
Recognition, Diagnosis and Management
Effective Date: July 15, 2007
Scope
This guideline summarizes current recommendations for recognition, diagnosis and longitudinal
management of cognitive impairment and dementia in the elderly. Where the guideline refers to
“people affected by dementia”, this indicates not only the person with dementia but also the people in
their “network of support”.
Summary recommendation Care Objectives
The primary care objectives are to encourage early recognition and assessment of cognitive
impairment and to support general practitioners in the development of a comprehensive care plan that
includes the identification of community resources for the people affected by dementia. A summary is
provided for this guideline and can be used as a worksheet in the physician’s office.
Part I: Recognition and Diagnosis
recommendation 1 Recognition
a. General population screening in asymptomatic individuals is not recommended at this time.
b. Cognitive impairment should be suspected when there is a history that suggests a decline in
occupational, social or day-to-day functional status. This might be directly observed or reported by
the patient, concerned family members, friends and/or caregivers.
Symptoms of Cognitive Impairment
• Asksthesamequestionrepeatedly
• Cannotrememberrecentevents
• Cannotprepareanypartofamealormayforgetthattheyhaveeaten
• Forgetssimplewords,orforgetswhatcertainobjectsarecalled
• Getslostinownneighbourhoodanddoesnotknowhowtogethome
• Dressesinappropriately(e.g.maywearsummerclothingonawinterday)
• Hastroubleguringoutabill,orcannotunderstandconceptssuchasbirthdays
Course •Stableandprogressive • Fluctuates:worseatnight •Diurnal:usuallyworse
VaD*:usuallystepwise • Lucidperiods inmornings,improves
asdaygoeson
Alertness •Generallynormal • Fluctuateslethargicorhyper-vigilant •Normal
Orientation •Maybenormalbutoften • Alwaysimpaired: •Usuallynormal
impairedfortime/later time/place/person
inthedisease,place
Memory •Impairedrecentand • Globalmemoryfailure •Recentmemorymaybe
sometimesremotememory impaired
•Long-termmemory
intact
Thoughts •Slowed;reducedinterests •Disorganized,distorted,fragmented •Usuallyslowed,
•Makespoorjudgements •Bizarreideasandtopicssuchas preoccupiedbysad
•Wordsdifculttond paranoidgrandiose andhopelessthoughts;
•Perseverates somaticpreoccupation
•Moodcongruent
delusions
Perception •Normal •Distorted:visualandauditory •Intact
•Hallucinations(oftenvisual) •Hallucinationscommon •Hallucinationsabsent
exceptinpsychotic
depression
Emotions •Shallow,apathetic,labile • Irritable,aggressive,fearful •Flat,unresponsiveor
•Irritable sadandfearful
•Maybeirritable
Sleep •Oftendisturbed,nocturnal • Nocturnalconfusion •Earlymorningwakening
wanderingcommon
•Nocturnalconfusion
Otherfeatures •Poorinsightintodecits •Otherphysicaldiseasemaynotbe •Pasthistoryofmood
disorientation
Presenceofdecitsinexecutivefunctions:Problem-solving,sequencing,multi-tasking,
conceptualizing,mentalexibility,abstractthinking,etc.
Presence of language deficits: Difficulty finding words, loss of speech fluency, word
substitutions, problems with verbal comprehension, etc.
Presence of agnosia(impairmentofrecognitionoffacesorobjects):Notcommonasa
presenting feature of dementia
Presenceofapraxia(impairmentofperformingprogrammedmotortasks):Examples:playing
an instrument, tying shoelaces or a tie, sewing or knitting
Presence of delusions:Examples:paranoiddelusionssuchasirrationalsuspiciousness,
concerns of infidelity, etc.
Presence of hallucinations:VividhallucinationsaresuggestiveofDLB
Gait abnormalities:AriselaterinAD;earlierinVaD,DLBandnormalpressurehydrocephalus
(NPH)
Urinaryincontinence:Ifurinaryandgaitproblemsoccurearlyinthecourseofcognitive
impairment,considerNPH
Impairedinstrumentalactivitiesofdailyliving:Aprerequisiteforthediagnosisofdementia
Examples:cannolongerperformjobsatisfactorily,unabletomanagenances,trouble
driving, cannot play bridge or keep score in golf, cannot cook from a recipe, unable to use public
transit, etc.
dementia with B12 treatment.
3
Othertestsmaybeaddedasindicatedbyclinicalsuspicion(e.g.SerologicalTestforSyphilis[STS],
HIV,renalfunctiontests,liverfunctiontest).
4. NEUROIMAGING
4,5
Neuroimaging(CTorMRIofhead)isnotroutinelyindicatedbutmaybeusefulwhen:
• Thepatientislessthan60yearsold
• Theonsethasbeenabruptorthecourseofprogressionrapid
• Thereisahistoryofsignicantrecentheadinjury
• Thepresentationisatypicalorthediagnosisisuncertain
• Thereisahistoryofcancer
• Therearenewlocalizingneurologicalsignsorsymptoms
• Vasculardementiaissuspected
• Thepatientisonanticoagulantsorhasableedingdisorder
• Thereisahistoryofurinaryincontinenceandearlypresentationofgaitdisorder
5. COGNITIVE TESTING
• Diagnosticcriteriarequirethatthereshouldbeobjectiveevidenceofamemorydecitto
support the diagnosis.
• PerformanobjectivetestofcognitionsuchastheStandardizedMiniMentalStateExamination
(SMMSE).WhilethenormalrangeforSMMSEscoresis24-30,performanceonthistestmust
be interpreted along with the other information gathered such as sensory impairment,
educationattainment,languageandculturalissues.CognitivestatusindicatedbytheSMMSE
isanimportantbenchmarkforfollowingthecourseofcognitiveimpairment(AppendixC).
• Supplementarytesttoconsider:ClockDrawingTest(AppendixD).
6. WORKING DIAGNOSIS
Arriving at a specific dementia sub-type diagnosis will aid in treatment planning and counselling.
BroaderuseofDSM-IVTRcategoryof‘dementiaduetomultipleetiologies’isencouraged,with
Temporal
Dementia
1. Slowprogressiveonset
2. Multiplecognitivedecitsmanifestedbyboth:
• Memoryimpairment
• Oneormoreadditionalcognitivedecitssuchasaphasia,apraxia,agnosia,disturbancein
executivefunctioning
3. Associatedsignicantfunctionaldecline
4. Notexplainedbyotherneurologicorsystemicdisorders
ThedegenerativechangesofADandthevascularchangesofVaDcommonlyco-exist.Presentationmore
commonlyofADpatternwithsignicantvascularriskfactors+/-smallvascularevents
1. Corefeatures:
• Fluctuatingcognitionwithpronouncedvariationinattentionandalertness(memorydecline
maynotbeanearlyfeature)
• Recurrentvisualhallucinationsthatarewellformedanddetailed
• SpontaneousmotorfeaturesofParkinsonism
2. Featuressupportiveofdiagnosis:
• Repeatedfalls
• Syncopeortransientlossofconsciousness
• Hypersensitivitytoantipsychotics(typicalandatypical)
• Systematizeddelusions;non-visualhallucinations
3. DLBhasreducedprevalenceofrestingtremorandreducedresponsetoL-dopacomparedtoidiopathicPDD
4. PresenceofREMsleepdisorderinthesettingofadementiasuggestsDLB&relatedconditions
5. DLBshouldoccurbeforeorconcurrentlywithonsetofParkinsonism
1. ThecognitivefeaturesmayappearsimilartoDLB(decitsinattentionandalertness)
2. LookformotorParkinsoniansymptomsthattypicallyarepresentmanyyearsbeforetheonsetofthe
dementiaforPDD
1. Insidiousonsetandgradualprogression;tendstopresentinmiddle-agedpatients
2. Characterchangespresentearlyandincludeapathy,disinhibition,executivefailurealoneorincombination
3. Relativelypreservedmemory,perception,spatialskillsandpraxis
5
• PatientswithMCImayprogresstodementiaatarateof16%peryear.
7
Once identified,
patientswithMCIshouldbere-examinedperiodically(e.g.every6months)sothattreatment
and counselling can be offered and incident dementia can be identified.
8. STAGING
SomecliniciansstageADusingtheGlobalDeteriorationScale(SeeAppendixF).
recommendation 3 Diagnosis Disclosure
a. The disclosure of a diagnosis of dementia should be done as soon as possible, but can cause
signicantstress.Thetimingandextentofdisclosureshouldbeindividualizedandisbestcarried
outoverafewvisitssupportedbyreferraltoothersupportresources(seePatient/CaregiverGuide).
•Ingeneral,thereareonlyafewexclusionstodisclosure,includingprobablecatastrophic
reaction, severe depression or severe dementia
• Disclosureisfacilitatedthroughaninitialopen-endedapproach,e.g.asking:“What do you think
the change in your memory and thinking is due to?”
b. Insettingupthevisitfordisclosure,considerpatientprivacyandaskwhetherthecaregivercanbein
attendance(theanswerwillbeyesinmostsituations).
c. At the initial disclosure visit highlight:
• Dementiawithdementiasub-typeasaclinicaldiagnosis
• Anticipatedprognosis
• Indicatethatyouwillfollow-upandprovideongoingsupport
• ProvidethePatient/CaregiverGuide,discussothersupportresourcesasappropriate
• Provideascheduleofvisitsandbookthenextvisit
d. Atfollow-upvisitsdiscuss(atleastevery6months):
• Informationneedsandconcerns
• Advanceplanningwithrespecttonancesandpatientpreferences
• Safetyplanning
• Availabilityofeducationandsupportresources
e. Disclosure when mild cognitive impairment is diagnosed needs to be carefully considered.
affected patient about eventual driving cessation. Assist the affected driver to make the necessary
lifestyle changes early and to cease driving by choice rather than by compulsion. Encourage
patienttoregisterwithHandyDart,HandyPASSandTaxiSavers(seeResourcessection).
b. An individual’s competence for driving should be assessed using both cognitive and non-cognitive
criteria(e.g.othermedicalconditionsandspecialsensorydefects),andincludecollateralhistory
about the individual’s driving habits from observers. On cognitive testing, deficits in attention,
visuospatialabilitiesandjudgmentmaybepredictorsofdrivingrisk.Whendoubtexistsabouta
patient’s driving competence, physicians should recommend a performance-based evaluation
suchasare-examroadtestbytheInsuranceCorporationofBritishColumbia(ICBC)oradriver
tnessreviewthroughtheOfceoftheSuperintendentofMotorVehicles.
c. InaccordancewiththeBC Motor Vehicle Act,physiciansarerequiredtodocumentpatientsunder
their care who have a condition incompatible with safe driving and to instruct these patients to
stopdriving.Ifthephysicianlearnsthatthepatientcontinuestodrivedespitethisinstruction,the
physicianisrequiredtonotifytheSuperintendentofMotorVehicles(Motor Vehicle Act section 230,
subsections 1-3).
d. Notwithstandingtheseminimumrequirements,physiciansmayopttonotifytheSuperintendentof
MotorVehiclesofanypatientwithaconditionincompatiblewithsafedriving.
e. When approached by friends or family members of individuals who may be driving unsafely due to
a medical condition, but who do not attend a physician, those members of the public can be told
tonotifytheSuperintendentofMotorVehiclesoftheirconcerns.
8
8
Cognitive impairment in the elderly – reCognition, diagnosis and management
revised January 30, 2008
Cognitive impairment in the elderly – reCognition, diagnosis and management
revised January 30, 2008
Diagnostic
Code: 290
recommendation 6 Self-Neglect, Neglect and Abuse
a. Physicians need to be aware of the potential risks for self-neglect, neglect and abuse by caregivers
e. Wandering
• Thepatientshouldalwayscarryidenticationwhenoutalone
• ConsideranIDbraceletthroughtheSafely Home
®
– Alzheimer Wandering Registry
Web site: www.alzheimer.ca/english/safelyhome/about.htm
f.
Socialization
• Patientswithdementialivingaloneinthecommunitymaybecomesociallywithdrawn
• Considerreferraltoanadultdaycentre(contactHomeandCommunityCare)
g. Legal issues
• Asearlyaspossibleinthecourseofdementia,engagethepatientinadiscussionofadvance
planning issues
• Encouragethepatienttohaveanup-to-datewill,anancialrepresentative,ahealthcare
proxyandsomeformofadvancemedicaldirective
• ARepresentationAgreementpermitsthepatienttoappointbothanancialrepresentativeand
ahealthrepresentative(guideavailableatwww.trustee.bc.ca).APowerofAttorney(withan
eduringclause)istherecommendedlegaldocumenttoappointanancialrepresentative
h. Other safety issues
• Considerothersafetyhazards,suchasunsafesmoking,rearmsinthehome,etc.
• Lifelineor911stickersonthetelephone
9
Cognitive impairment in the elderly – reCognition, diagnosis and management
revised January 30, 2008
Diagnostic
Code: 290
recommendation 8 Co-Morbid Conditions
Address co-morbid conditions to prevent further unnecessary impairment of cognition in demented
individuals. The underlying dementia has implications for management of other conditions, particularly
),galantamine(Reminyl
®
)andrivastigmine(Exelon
®
).Theyare
currentlyapprovedbyHealthCanadaforthesymptomatictreatmentofmildtomoderatedementiaof
theAlzheimer’stype(AD).ThereisinsufcientevidencetorecommendthemforMCI.
5
• EarlierstudieshavedemonstratedsmalltomodestefcacyofAChEIsincognitiveandglobal
outcome measures, while recent studies have included maintenance of activities of daily living and
reductionofcaregiverburdenasoutcomes.Inameta-analysisofstudieswithglobaloutcomes
(subjectiveassessmentbyclinicianand/orcaregiverofchangeoverall),thenumberneededtotreat
(NNT)is12(3-6months)foroneadditionalpatienttoexperiencestabilizationorimprovementon
global response.
8
Intheliterature,thereislittledenitiveevidencefordurationofefcacybeyond
two years.
• WhilesomeevidencesuggestsaroleforAChEIsinthetreatmentofsymptomsassociated
withsevereADandinothertypesdementias(VaDandDLB),
9,10
the clinical meaningfulness of
randomizedcontrolledtrialoutcomemeasuresiscontroversialanddonepezilistheonlyAChEI
currentlyapprovedbyHealthCanadafortheseindications.
• 8%morepatientsexperienceadverseeventsonAChEIscomparedtoplacebo(numberneededto
harm[NNH]=12)
10
10
Cognitive impairment in the elderly – reCognition, diagnosis and management
revised January 30, 2008
Cognitive impairment in the elderly – reCognition, diagnosis and management
• Caregiversmaybeaskedtokeepawrittenrecordofpersonalimpressions,commentonadverse
drug reactions, sleep disturbances etc., to support assessment
• Afterinitiationofthemedication,theinitialvisitschedulewillbedeterminedbythetitration
schedule(i.e.every2-6weeksuntildosereached)
• Areviewforsideeffectsshouldbecarriedoutwithintherst3months,usuallyatthetitration
visit(s)
• Every6months, monitor for changes from baseline in stabilization or deterioration of cognition,
function, behaviour and global assesment of change
• Usepatient-specicinformationtoinformreassessment of continued drug therapy
• Currentliteratureiscontroversialwithrespecttoadverseeffectsfromdiscontinuingtreatment
Effective October 22, 2007, PharmaCare,
through the Alzheimer's Drug Therapy
Initiative,willprovidecoverageof
donepezil, rivastigmine and galantamine
for eligible individuals diagnosed with
mild to moderate Alzheimer's disease,
including patients with Alzheimer's
disease with a vascular component or
Parkinsonianfeatures.Fordetailsonthis
initiative please visit: lth.
gov.bc.ca/pharme/adti
11
Cognitive impairment in the elderly – reCognition, diagnosis and management
revised January 30, 2008
Diagnostic
Code: 290
Table 3. Starting dose and titration schedule of AChEIs
Drug*
Starting Titration Dose Increase Usual Effective
Dose Period Per Titration Max Dose
revised January 30, 2008
Cognitive impairment in the elderly – reCognition, diagnosis and management
revised January 30, 2008
Diagnostic
Code: 290
Memantine(Ebixa
®
):HealthCanadahasgrantedmemantineaNotice of Compliance with Conditions
as monotherapy or as adjunctive therapy with cholinesterase inhibitors for the symptomatic treatment
of patients with moderate to severe Alzheimer’s Disease. The product monograph advises against
the use of memantine in patients with renal disease, cardiovascular disease and seizure disorders.
Adverseeffectsofmemantinemayinclude:fatigue,pain,dizziness,constipation,anxietyand
hallucinations.
Table 4. Starting dose and titration schedule of memantine
Drug
Starting Titration Dose Increase Usual Effective
Dose Period Per Titration Max Dose
memantine 5 mg 4 wks 5 mg 10 mg b.i.d.
Potential Drug Interactions
MajordruginteractionsassociatedwithmemantineincludedrugswhichincreasethepHinurine(e.g.
carbonicanhydraseinhibitors).Exercisecautionwhenprescribingmemantinewithotherdrugswhich
undergo renal tubular secretion. Dofetilide is considered a very severe risk, due to the potential for
causing arrhythmias. The effects of dopamine agents will be increased when co-administrated with
memantine.
OtherAgents:UseofGinkgoBiloba,VitaminE,anti-inammatorydrugs(suchasNSAIDs),estrogen
and statins is not recommended. There is insufficient evidence of treatment efficacy and/or concerns
have been raised about possible increased risk of negative health impacts.
recommendation 10 Behavioural and Psychological Symptoms of Dementia (BPSD)
a. Symptoms
• Psychosis(hallucinationsordelusions)
• Treatsleepdisorderswhennecessarywithtrazodone25-75mgatthehourofsleep
(*Benzodiazepinesarenotrecommendedduetotheirhighpotentialforadverseeventssuchas
confusionandfalls)
• Treatpsychosis(hallucinationordelusions)withantipsychoticmedicationsonlywhenthe
patient is particularly disturbed by these symptoms
• Treataggressionoragitationwith:
- Cholinesterase inhibitors, or
- Trazodone 25-50 mg does up to 200 mg a day, or
- Antipsychotics:typical(Loxapine)oratypical(risperidone,olanzapineorquetiapine)only
afterenvironmentalandpsychosocialinterventionshavebeenconsidered,exceptinurgent
situations
Exercise caution when prescribing antipsychotic medications.
All antipsychotics have side effects and a risk-benefit assessment
needs to be carefully adjudicated in each case.
Antipsychotic medications are only recommended when:
• Alternatetherapiesareinadequateontheirown
• Thereisanidentiableriskofharmtothepatientandothers
• Symptomsaresevereenoughtocausesufferinganddistress
When using antipsychotics, initiate a careful trial of a low dose antipsychotic and slow upward
titration(e.g.risperidone0.125mginveryfrailpatientswithslowupwardtitrationto1.5–2mg
maximumaday).InpatientswithDLBandPDD,considersensitivitytomedication(e.g.increased
riskofextrapyramidialsideeffectswhenusingantipsychotics).Monitortheeffectsclosely
andreviewtodeterminewhetheramaintenancedosemaybeneeded(itmaybepossibleto
discontinuemaintenancedoseovertime).
• Atypicalantipsychoticsinclude:risperidone,quetiapineandolanzapine.Risperidonehasbeen
favouredasthemostefcaciousforagitationindementia,butwithmodestoutcomes.Itisthe
only atypical antipsychotic approved for the short-term treatment of aggression or psychosis in
patients with severe dementia.
• Atypicalantipsychoticshavebeenassociatedwithsevereadverseeventssuchasincreased
• Treatmentofrecurrentinfections
• Provisionforincreasedservicesathome
• Indicationsfortransfertohospitalortoahigherlevelofcare
recommendation 12 Caregiver Support
Caregivers need to be well supported. Determine your capability to provide ongoing, regular support,
and/orreferouttootheragencies(SeeRecommendation13forworkingwithcommunityandhealth
careservices).
• Askaboutthecaregiver’sneeds,copingstrategies,supportsystemandburden
• Educatepatientsandcaregiversaboutthediseaseandhowtocope,includingadvancecare
planning(considerculturalcontextforunderstandingandacceptanceofdementia;seePatient
&CaregiverGuide)
• Coordination,communicationandplanningduringtransitionbetweencareenvironments
• Respiteforcaregiversincludingadultdaycentrereferralforpatientetc.
recommendation 13 Community Care, Mental Health and Specialty Services Resources
a. TimelyreferraltotheAlzheimerSocietyofBC(ASBC).TheASBCassistspeoplewithalltypesof
dementia and their caregiver’s particularly:
• Peoplewithearlystagedementia
• Caregiversforpeoplewithdementiaatanystage
Note: Disclosure of the diagnosis or suspected diagnosis of dementia should occur before
referral to ASBC
b. Asktheopinionofadementiaspecialist(geriatrician,neurologist,psychiatrist)whendiagnosisor
management is problematic
c. RefertoHomeandCommunityCareservicesineachoftheHealthAuthoritiesforlong-termcase
management, home support, home safety assessment, respite care, adult day care or transitions
to alternate living situations
d. RefertoCommunityMentalHealthServicesforsignicantandcomplexmentalhealthconditions
affecting the health and care of the patient and caregiver
Rationale
Alzheimer’sdisease(AD)andrelateddementiasareprogressive,irreversibledegenerativebrain
impairment, increased allocation of resources for long term care facilities, caregiver support and home
care, increased physician training and education in AD and related dementias.
List of Abbreviations
AChEI AcetylcholinesteraseInhibitor
AD Alzheimer's disease
ASBC AlzheimerSocietyofBritishColumbia
BPSD BehaviouralandPsychologicalSymptomsofDementia
CAM ConfusionAssessmentMethod
CDM chronicdiseasemanagement
CDT Clock Drawing Test
CHF congestiveheartfailure
CT (CAT)computerizedaxialtomography
DLB DementiawithLewyBodies
DSMIV-TR DiagnosticandStatisticalManualofMentalDisorders,FourthEd.,TextRevision
GDS GeriatricDepressionScale(Yesavageetal.)
GDS GlobalDeteriorationScale(Reisbergetal.)
MCI mildcognitiveimpairment
MDD majordepressivedisorder
MoCA MontrealCognitiveAssessment
MRI magneticresonanceimaging
NNH numberneededtoharm
NNT numberneededtotreat
NPH normalpressurehydrocephalus
NSAID non-steroidalanti-inammatorydrug
OTC over-the-counter
PDD Parkinson’s Disease Dementia
SMMSE StandardizedMiniMentalStateExam
SR slowrelease
SSRI SelectiveSerotoninReuptakeInhibitor
TBI traumaticbraininjury
potential self neglect, neglect and abuse: www.communityliving.bc.ca
Alzheimer Society of BC assists people with all types of dementia and their caregivers
1-800-667-3742orgoto:www.alzheimerbc.org/
Alzheimer's Drug Therapy Initiative
Allquestions,clinicalandadministrative,canbedirectedtoHealthInsuranceBCat1800663-7100or
go to: www.health.gov.bc.ca/pharme/adti
References
1. WrightCB,LeeHS,PaikMC,etal.Totalhomocysteineandcognitioninatri-ethniccohort:the
NorthernManhattanStudy.Neurology2004;63:254-60.
2. GarciaA,ZanibbiK.Homocysteineandcognitivefunctioninelderlypeople.Canadian
MedicalAssociationJournal2004;171:897-904.
3. MaloufR,AreosaSastreA.VitaminB12forcognition.CochraneDatabaseofSystematic
Reviews2003;(3):CD004326.
4. PattersonC,GauthierS,BergmanH,etal.Therecognition,assessmentandmanagement
of dementing disorders: Conclusions from the Canadian consensus conference on dementia
CanadianJournalofNeurologicalScience2001;28(Suppl1):S3-S16.
5. ThirdCanadianConsensusConferenceonDiagnosisandTreatmentofDementia,Montreal,
March9-11,2006.Ofcialconferencepublicationforthcoming.
6. NasredddineZ,PhillipsN,BedirianV,etal.TheMontrealCognitiveAssessment,MoCA:A
briefscreeningtoolformildcognitiveimpairment.JournaloftheAmericanGeriatricsSociety
2005;53:695-699.
7. PetersonRC,ThomasRG,GrundmanM,etal.fortheAlzheimer’sDiseaseCooperative
StudyGroup.VitaminEanddonepezilforthetreatmentofmildcognitiveimpairment.New
EnglandJournalofMedicine2005:352:2379-2388.
8. LanctôtK,HerrmannN,YauKK,etal.Efcacyandsafetyofcholinesteraseinhibitorsin
Alzheimer’sdisease:ameta-analysis.CanadianMedicalAssociationJournal2003;169(6):557-64.
9. FeldmanH,GauthierS,HeckerJ,etal.andtheDonepezilMSADStudyInvestigatorsGroup.
A 24-week, randomized, double-blind study of donepezil in moderate to severe Alzheimer’s
disease.Neurology2001;57:613-620.
17
BritishColumbiaMedicalAssociationandadoptedbytheMedicalServicesCommission.
Contact Information
Guidelines and Protocols Advisory Committee
POBox9642STNPROVGOVT
VictoriaBCV8W9P1
Phone: 250952-1347 E-mail:
Fax: 250952-1417 Website: www.BCGuidelines.ca
Appendices
AppendixA TheConfusionAssessmentMethod(CAM)DiagnosticAlgorithm
AppendixB GeriatricDepressionScale(GDS)
AppendixC StandardizedMini-MentalStateExam(SMMSE)
AppendixD ClockDrawingTest
AppendixE MontrealCognitiveAssessment(MoCA)
AppendixF GlobalDeteriorationScale
AppendixG CognitiveImpairmentintheElderlyFlowSheet(Optional)
The principles of the Guidelines and Protocols Advisory Committee are to:
• encourageappropriateresponsestocommonmedicalsituations
• recommendactionsthataresufcientandefcient,neitherexcessivenordecient
• permitexceptionswhenjustiedbyclinicalcircumstances.
18
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Cognitive impairment in the elderly – reCognition, diagnosis and management
revised January 30, 2008
Cognitive impairment in the elderly – reCognition, diagnosis and management
revised January 30, 2008
Diagnostic
Code: 290
Associated Documents
The following documents accompany this guideline:
revised January 30, 2008
GERIATRIC DEPRESSION SCALE (GDS)*
Directions to Patient: Please choose the best answer for how you have felt over the past week
DirectionstotheExaminer: Readthequestionstothepatientandrecordtheirresponses.
Ifappropriate,allowtheclienttocompletetheformonhis/herown.
1. Areyoubasicallysatisedwithyourlife? ❏ Yes ❏ No
2 Haveyoudroppedmanyofyouractivitiesandinterests? ❏ Yes ❏ No
3 Doyoufeelthatyourlifeisempty? ❏ Yes ❏ No
4 Doyouoftengetbored? ❏ Yes ❏ No
5 Areyouingoodspiritsmostofthetime? ❏ Yes ❏ No
6 Areyouafraidthatsomethingbadisgoingtohappentoyou? ❏ Yes ❏ No
7 Doyoufeelhappymostofthetime? ❏ Yes ❏ No
8 Doyouoftenfeelhelpless? ❏ Yes ❏ No
9 Doyouprefertostayathome,ratherthangoingoutanddoingnewthings? ❏ Yes ❏ No
10 Doyoufeelyouhavemoreproblemswithmemorythanmost? ❏ Yes ❏ No
11 Doyouthinkitiswonderfultobealivenow? ❏ Yes ❏ No
12 Doyoufeelprettyworthlessthewayyouarenow? ❏ Yes ❏ No
13 Doyoufeelfullofenergy? ❏ Yes ❏ No
14 Doyoufeelthatyoursituationishopeless? ❏ Yes ❏ No
15 Doyouthinkthatmostpeoplearebetteroffthanyouare? ❏ Yes ❏ NoAscoregreaterthan5issuggestiveofdepression,however,fullscoringinformationfortheGDSis
availableat: />Yesavage:TheuseofRatingDepressionSeriesintheElderly,inPoon(ed.):Clinical Memory
Assessment of Older Adults,AmericanPsychologicalAssociation,1986.
SheikhJI,YesavageJA:GeriatricDepressionScale(GDS):Recentevidenceanddevelopmentof
a shorter version. Clinical Gerontology: A Guide to Assessment and Intervention 165-173,NY:The
HaworthPress,1986.
ThefollowingWebsiteallowsyoutodownloadtheGDSinEnglishorotherlanguages.
andPage4,ablankpieceofpaper.
6. Ifthepersonanswers:Whatdidyousay?,donotexplain
orengageinconversation.Merelyrepeatthesame
directionsamaximumofthreetimes.
7. Ifthepersoninterrupts(e.g.Whatisthisfor?),reply:I will
explain in a few minutes, when we are finished. Now if
we could proceed please… we are almost finished.
1. Time: 10 seconds for each reply:
a) What year is this?(acceptexactansweronly).
b) What season is this?(accepteither:lastweekoftheoldseasonorrstweekofanewseason).
c) What month is this?(accepteither:therstdayofanewmonthorthelastdayofthepreviousmonth).
d) What is today’s date?(acceptpreviousornextdate).
e) What day of the week is this?(acceptexactansweronly).
2. Time: 10 seconds for each reply:
a) What country are we in?(acceptexactansweronly).
b) What province are we in?(acceptexactansweronly).
c) What city/town are we in?(acceptexactansweronly).
d) (Inhome)What is the street address of this house?(acceptstreetnameandhousenumberorequivalent
inruralareas).
(Infacility)What is the name of this building?(acceptexactnameofinstitutiononly).
e) (Inhome)What room are we in?(acceptexactansweronly).
(Infacility)What floor of the building are we on?(acceptexactansweronly).
3. Time: 20 seconds
Say: I am going to name three objects. When I am finished, I want you to repeat them. Remember what they
are because I am going to ask you to name them again in a few minutes.
(Saythefollowingwordsslowlyat
approximatelyone-secondintervals):Ball / Car / Man.
Forrepeateduse:Bell,jar,fan;Bill,tar,can;Bull,bar,pan.
Please repeat the three items for me.(scoreonepointforeachcorrectreplyontherstattempt.)
8. Time: 10 seconds
Say: I would like you to repeat a phrase after me: No ifs, ands or buts.
Scoreonepointforacorrectrepetition.Mustbeexact,e.g.noifsorbuts,score0).
9. Time: 10 seconds
Say: Read the words on this page and then do what it says.Then,handthepersonthesheetwithCLOSEYOUR
EYESonit.Ifthesubjectjustreadsanddoesnotcloseeyes,youmayrepeat:Read the words on this page and
then do what it says
(amaximumofthreetimes).Scoreonepointonlyifthesubjectcloseseyes.Thesubject
doesnothavetoreadaloud.
10. Time: 30 seconds
Handthepersonapencilandpaper(Page3).Say: Write any complete sentence on that piece of paper.
Scoreonepoint.Thesentencemustmakesense.Ignorespellingerrors.
11. Time: 1 minute maximum
Placedesign,eraserandpencilinfrontoftheperson.Say: Copy this design please.Allowmultipletries.Wait
untilthepersonisnishedandhandsitback.Scoreonepointforacorrectlycopieddiagram.Thepersonmust
havedrawnafour-sidedgurebetweentwove-sidedgures.
12. Time: 30 seconds
Ask thepersonifheisrightorlefthanded.Takeapieceofpaper,holditupinfrontofthepersonand
say: Take this paper in your right/left hand(whicheverisnon-dominant),fold the paper in half once with both
hands and put the paper down on the floor.
Scoreonepointforeachinstructionexecutedcorrectly.
Takespaperincorrecthand
Foldsitinhalf
Putsitontheoor
Total Test Score:
Adjusted Score
/5
/3
/1
=Score3
=Score3
ScoringWORLDbackwards(instructionsforitem#4)
Write the person’s response below the correct response.
Draw lines matching the same letters in the correct response and the response given.
TheselinesMUSTNOTcrosseachother.Drawonlyonelineperletter.
Theperson’sscoreisthemaximumnumberoflinesthatcanbedrawnwithoutcrossingany.
Examples:
=Score0
Foldalongthislineandshowinstructionstoperson
Foldline
Item11
Item9
Cognitive impairment in the elderly – reCognition, diagnosis and management
revised January 30, 2008
Sentence Writing
Item10
Cognitive impairment in the elderly – reCognition, diagnosis and management
revised January 30, 2008
AppendixC
Standardized Mini Mental State Examination (SMMSE) Cont’d
Table 1. Stages of Cognitive Impairment as Defined by SMMSE Scores
SCORE DESCRIPTION STAGE DURATION (Years)
30-26 Couldbenormal Couldbenormal Varies
25-20 Mild Early 0to23
19-10 Moderate Middle 4-7
9-0 Severe
Late 7-14
Table 2. Areas of Functional Impairment
SMMSE SCORE ACTIVITIES OF DAILY LIVING COMMUNICATION MEMORY