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DOSS (Delirium Observation Screening Scale)

DOSS: Nursing observational scale scored over an entire shift. Do not ask the patient questions specifically for this test; score based on routine care observations.

Rate observations over the past shift

1. Dozes off during conversation or activities

2. Is easily distracted by stimuli from the environment

3. Maintains attention to conversation or action

4. Does not finish question or answer

5. Gives answers that do not fit the question

6. Reacts slowly to instructions

7. Thinks he/she is somewhere else

8. Knows which part of the day it is

9. Remembers recent events

10. Is picking, pulling, or restless

11. Is easily or suddenly emotional (crying/angry)

12. Sees/hears things that are not there

13. Is sluggish or drowsy

Guidelines & Evidence

Verified

Last Review: 2026

When to Use

When to Use

Routine shift-by-shift delirium surveillance by nursing staff in acute and long-term care.
Early detection of delirium symptoms over a 24-hour period.
Monitoring delirium severity and fluctuation over time.

Nursing-Led Surveillance

The DOSS is designed specifically for nurses to complete during regular care activities without needing to perform a formal cognitive interview. It captures the fluctuating nature of delirium across shifts.

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 CAM — Confusion Assessment Method, 4AT (Rapid Assessment Test for Delirium) or the DRS-R-98 (Delirium Rating Scale) to formulate a comprehensive care plan.

Last Comprehensive Review: 2026

Related Geriatrics Tools

CAM — Confusion Assessment Method
4AT
DRS-R-98
Beers Criteria
MNA-SF
Braden Scale
Fried Frailty Phenotype
Triage Risk Screening Tool
MUST
Functional Reach Test
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