4AT (Rapid Assessment Test for Delirium)ACS-NSQIP Surgical Risk Calculator AD8 Dementia Screening Anticholinergic Burden Score (ACB)Barthel Index Beers Criteria (PIMs)Berg Balance Scale Braden Scale CAM — Confusion Assessment Method Clinical Dementia Rating (CDR)Clinical Frailty Scale (CFS)Clock Drawing Test (CDT)Cornell Scale for Depression (CSDD)DOSS (Delirium Observation Screening Scale)DRS-R-98 (Delirium Rating Scale)Drug Burden Index (DBI)Edmonton Frail Scale (EFS)FRAIL Scale Fried Frailty Phenotype Functional Independence Measure (FIM)Functional Reach Test Geriatric Depression Scale (GDS-15)Groningen Frailty Indicator (GFI)HELP Score (Postoperative Delirium Risk)Hendrich II Fall Risk Model ICIQ-UI SF interRAI Clinical Assessment IQCODE Katz Index of Independence in ADLs Lawton Instrumental ADL Scale mFI-5 Preoperative Frailty Mini Nutritional Assessment (MNA) - Full Mini-Cog MMSE MNA-SF (Short Form)Morse Fall Scale MUST (Malnutrition Universal Screening Tool)Norton Scale OAB-V8 OST (Osteoporosis Screening Tool)OSTA (Osteoporosis Self-Assessment Tool for Asians)Six-Item Screener (SIS)SPMSQ STOPP/START Criteria STRATIFY Risk Assessment Tool Timed Up and Go (TUG) Test Triage Risk Screening Tool (TRST)Waterlow Score

In Recent Clinical News

Scanning Medical Journals

No new significant updates or guidelines matching this topic were found today. We will check again soon.

Clock Drawing Test (CDT)

Standard Instruction: Give the patient a blank piece of paper and say:

"Please draw a clock. Put in all the numbers, and set the time to 10 past 11."

Score the drawing (Shulman Qualitative Method)

Guidelines & Evidence

Verified

Last Review: 2026

When to Use

Brief cognitive screening for dementia in primary care or geriatric clinics.

Assessment of executive function, visuospatial ability, and semantic memory.

Identifying cognitive impairment in patients who score normally on the MMSE due to high premorbid intellect.

Included as a core component of the Mini-Cog and MoCA.

A Window into Executive Function

Drawing a clock requires complex cognitive interplay: verbal understanding (the instruction), semantic memory (what a clock looks like), visuospatial skills (planning the circle and numbers), and executive function/abstraction (placing the hands to represent a specific time).

Related Scores in Practice

In clinical practice, this assessment is frequently evaluated alongside other validated measures. Depending on the patient's presentation and specific diagnostic requirements, you may also need to utilize the Mini-Cog, MMSE, MoCA or the AD8 Dementia Screening to formulate a comprehensive care plan.

Last Comprehensive Review: 2026