---
title: "acvpu"
description: "Simple scale used as part of an assessment to measure and record an individual's level of consciousness."
---

Simple scale used as part of an assessment to measure and record an individual's level of consciousness.

**Purpose.** To record an individual's level of consciousness.

## Source

| Model | Leg | Role |
|---|---|---|
| `openEHR-EHR-OBSERVATION.acvpu.v1` | openEHR | defines this table |

## Columns

| Column | Type | Null | Description | Source |
|---|---|---|---|---|
| `id` | `uuid primary key` | no | Primary key. | — |
| `form_id` | `uuid` → [`form`](/docs/tables/form) | no | The form this entry was recorded on. | — |
| `form_block_id` | `uuid` | yes | The block within the form, when the entry is bound to one. | — |
| `acvpu`<br />`acvpu_code`<br />`acvpu_system`<br />`acvpu_valueset_id` | coded text<br />`text`, `text`, `text`, `text` | yes | ACVPU | `/data[at0001]/events[at0002]/data[at0003]/items[at0004]` |

## Constraints

```sql
check ((acvpu_code is null and acvpu_system is null and acvpu_valueset_id is null and acvpu is null) or (acvpu is not null and acvpu_code is not null and acvpu_system is not null and acvpu_valueset_id is not null))
```

## Unique

- `form_block_id`

## References

| Columns | Target | On delete |
|---|---|---|
| `form_id` | [`form`](/docs/tables/form) | cascade |
| `form_id, form_block_id` | [`form_block`](/docs/tables/form_block) | cascade |
| `acvpu_valueset_id, acvpu_code, acvpu_system, acvpu` | [`valueset_code`](/docs/tables/valueset_code) | restrict |

## Indexes

- `acvpu_form_id_idx` on `form_id`

## Value sets

| Value set | Codes |
|---|---|
| `org.openehr::openEHR-EHR-OBSERVATION.acvpu.v1/acvpu` | 5 |