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Printed on 7/20/2026
For informational purposes only. This is not medical advice.
Mini-ACE (M-ACE) is a concise 30-point cognitive test derived from the Addenbrooke's Cognitive Examination, designed for rapid outpatient and bedside cognitive triage. It samples multiple cognitive domains and is used to identify patients requiring fuller neurocognitive assessment.
Formula: Mini-ACE total = summed domain points, range 0-30.
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The examiner administers five tasks: (1) immediate recall of a 7-word address phrase, (2) verbal fluency (animals named in 60 seconds), (3) clock drawing, (4) delayed recall of the address (3 points), and (5) abbreviated cognitive items. Total score 0-30.
Sum item scores. A score of 25 or below is the most widely used threshold for possible cognitive impairment, with reported sensitivity of 88% and specificity of 89% for dementia in published validation studies. Administration takes approximately 5 minutes.
A positive Mini-ACE screen (score <=25) should prompt extended assessment—full ACE-III, MoCA, or formal neuropsychological evaluation—plus collateral history, functional review, and appropriate specialist referral.
Memory Clinic Clinicians
Mini-ACE is ideal for memory clinic waiting rooms or pre-appointment triage to identify patients who need full neuropsychological workup. Its 5-minute administration fits naturally into time-constrained memory service workflows.
General Practitioners & Family Physicians
Use Mini-ACE during annual health checks or in response to patient or carer memory concerns. It provides more cognitive domain coverage than MMSE while remaining brief enough for primary care consultation.
Hospital Geriatric Teams
Administer Mini-ACE as part of post-acute geriatric review to identify cognitive impairment that may affect rehabilitation engagement, discharge planning, and capacity to consent.
Clinical Researchers
Mini-ACE serves as an efficient screening gate in research studies where a time-effective cognitive screen with documented sensitivity and specificity is needed across large participant samples.
Outpatient Geriatric & Neurology Clinics
Administer Mini-ACE at 6-12 month intervals to track cognitive trajectory in patients with subjective memory complaints or mild cognitive impairment. Declining scores over time support progressive impairment.
The animal naming fluency item (60 seconds) is one of the most sensitive single items for early dementia. Normal performance is typically 15-18 animals per minute in cognitively intact older adults; fewer than 12 strongly suggests impairment.
The clock drawing subtest reflects executive function, visuospatial ability, and semantic memory simultaneously. Use a standardized scoring criteria—command (draw clock showing 11:10) with a pre-drawn circle provided—and document the specific error types observed.
The 3-point delayed address recall item is often the single most discriminating item for dementia. Even one uncued recall failure in a patient with concerns warrants follow-up. Offer category cues before scoring failures.
Mini-ACE was validated primarily in English-speaking populations with moderate educational attainment. Apply caution with patients having less than 8 years of formal education or non-native English speakers—borderline scores may reflect language exposure rather than pathology.
Mini-ACE screens for impairment but cannot characterize dementia subtype, severity stage, or functional impact. Always integrate with clinical history from the patient and an informant before making management decisions.
Test at a time of day when the patient is most alert. Late afternoon testing in older adults may underestimate cognitive reserve. Reassure anxious patients that the test has no pass or fail—this reduces performance anxiety effects.
When Mini-ACE scores fall in the 25-27 range with clinical concern, proceed to the full ACE-III which provides 100-point detailed domain scoring across memory, language, attention, fluency, and visuospatial domains.
Record depression screen result, medication list (anticholinergics, sedatives), hearing/vision status, and acute illness before interpreting Mini-ACE. These factors can all depress scores independently of neurodegeneration.
Mini-ACE has published validation as a practical brief cognitive instrument for impairment detection.
Lower Mini-ACE totals indicate stronger cognitive-impairment signal and need for follow-up evaluation.
Use for rapid cognitive triage in clinic or bedside settings when brief multidomain screening is needed.
Performance can vary with language, education, sensory impairment, and neurologic comorbidity.
Disclaimer: This tool is for educational and informational purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider with questions about your health.
April 21, 2026 · trust-baseline
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