# Logical Record Architecture for Health and Social Care
## Discharge Summary Release 0.02

Contents
The content of this release is not comprehensive and is not fully validated and must not be used in live system implementations.
# ELEMENT Domain Model: BloodPressureObservation
An ELEMENT to represent the result of a measured non-invasive blood pressure. The default or standard recording of an observed blood pressure assumes that NICE guidelines on blood pressure taking are followed, i.e.: The patient is in a sitting position An appropriate device is used Korotkoff's 4th sound is used for the diastolic pressure1,3 The non-standard recording of an observed blood pressure may explicitly include one or more of the following: Position of the patient Type/size of cuff used Type of detection device used 4th or 5th Korotkoff sound used for diastolic pressure3 1: NPFIT-FNT-TO-DPM-0725.06 - NPfIT Message Implementation Manual 7.2.02 3: NPFIT-NCR-DES-0422.06 Representation of Commonly Used Concepts in the Care Record ## Attributes
Name | Data type | Occurs | Description | Value Constraints
--- | --- | --- | --- | ---
name | SC | 1..1 | The name, expressed as a coded value or as plain text, specifies the clinical or administrative concept to which this EHR node corresponds, as labelled in the EHR system in which it was first committed. |
value
Literal value(s): PROPERTY_OBSERVATION_ELEMENT
rc_id | II.Uuid | 1..1 | The globally-unique identifier by which this node in the EHR hierarchy is referenced in the EHR system to which the data were first committed. This identifier shall be retained by the EHR Recipient and re-used whenever this RECORD_COMPONENT is subsequently included in another EHR_EXTRACT. |
meaning | CD.CV | 1..1 | A coded representation of the blood pressure observation. |
code
Semantic expression constraint
synthesised | BL | 1..1 | This attribute value shall be TRUE if this RECORD_COMPONENT has been created in order to comply with this standard , but this point in the EHR hierarchy has no corresponding node in the EHR from which it was extracted. |
value
Default value: false
obs_time | IVL_TS | 0..1 | The date and time of the blood pressure observation. |
value | ANY | 1..1 | An ELEMENT has a single DATA_VALUE containing the value, unless this is indicated as absent by a null_flavour attribute. |
nullFlavor
Literal value(s): DER
## COMPONENT RELATIONSHIPS ### Subject of relationships
Name | Object of relationship | Occurs | Dependency
--- | --- | --- | ---
IsResultantObservationOf | BloodPressureMeasurement | 0..1 | INDEPENDENT
HasPart | SystolicPressureObservation | 1 | DEPENDENT_OBJECT
HasAnnotation | Text | 0..* | INDEPENDENT
HasClinicalContext | GenericFindingObservation | 0..* | DEPENDENT_OBJECT
HasPart | DiastolicPressureObservation | 1 | DEPENDENT_OBJECT
### Object of relationships
Name | Subject of relationship | Occurs | Dependency
--- | --- | --- | ---
IsInterpretationOf | DiagnosisName | 0..* | INDEPENDENT
HasIndication | ProductOrSubstanceRelatedActivity2 | 0..* | INDEPENDENT
HasIndication | GenericTreatment | 0..* | INDEPENDENT
HasSubtype | GenericPropertyObservation2 | 0..1 | INDEPENDENT
HasPart | GenericAssessment | 0..* | INDEPENDENT
## Item of ENTRY Domain Models ### BloodPressure ### Diagnosis ### GenericAssessment ### GenericTreatment ### ProductOrSubstanceRelatedActivity2 ### Diagnosis ## Reference Model Type ## PROPERTY_OBSERVATION_ELEMENT