Assessment of the capacity to consent to admission is an important legal and ethical issue in daily medical practice. Mental Capacity Assessment (MCA) should be carried out thoroughly based on all the domains mentioned in the Mental Capacity Act (2005) and be recorded in the patient's notes or admission. This audit evaluated the documentation available on the electronic database (Paris) in order to ascertain what information was and wasn't documented. The standard used: “Decision–making and mental capacity”. NICE guideline NH108 (2018) recommendations 1.4 Assessment of mental capacity were used as a standard for this audit. 100% of all admitted patients should have MCA completed during the admission clerking.

The data were examined retrospectively from the MCA on admission, available on the electronic health record database (Paris). The audit tool focuses on quantitative data collection on Mental capacity documentation.

A random sample was selected of 15 patients admitted in May, June, September, and October 2022 to the Peter Bruff MH Assessment Unit (male and female). Total 60 patients.

All data were anonymised. Results were tabulated and presented in statistical form back to the clinical teams.

All patients who were admitted to the assessment unit were subjected to capacity assessment, consenting to informal admission and acceptance of treatment.

MCA was completed and patients had capacity both on clerking and during the ward review in 85% of cases, (n=61). MCA was completed and 3 % of all patients were found to lack capacity on clerking (n=2). MCA was completed, and patients had the capacity on admission, however, they had no capacity during the review in 5% of cases (n=3). MCA was not completed, or the information was unavailable, for 7% of the cohort (n=4).

Capacity to consent is specific to a decision and can vary over time; a patient is therefore competent or not with respect to a specific decision and for a given moment in time.

We found that after the clerking assessment, when patients were reviewed by the unit doctor and the consultant, whether on the day of admission or shortly after (in a matter of hours), on several occasions some patients were lacking the capacity to consent to the admission.

The missing link to be identified between the MCA capacity assessment that was carried out by the clerking doctor, compared to the MCA that was conducted by the unit doctor and consultant. This could be a restrictive environment on the unit or less attention paid to the quality of capacity assessment and further training is needed for professionals.