## findObservationReferenceRanges() function

Returns all matching observation reference range for the given patient and condition names.

**Signature:**

```typescript
export declare function findObservationReferenceRanges(definition: ObservationDefinition, patient: Patient, names?: string[]): ObservationDefinitionQualifiedInterval[];
```

## Parameters

| Parameter | Type | Description |
| --- | --- | --- |
| definition | ObservationDefinition | The observation definition. |
| patient | Patient | The patient. |
| names | string\[\] | _(Optional)_ Optional condition names. |

**Returns:**

ObservationDefinitionQualifiedInterval\[\]

The observation intervals if found; otherwise an empty array.