Logical Record Architecture for Health and Social Care

Discharge Summary Release 0.02

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: UreaReductionRatioObservation

An ELEMENT to represent a derived Urea Reduction Ratio observation. Urea Reduction Ratio (URR) is the reduction in urea as a result of dialysis. The URR is one measure of how effectively a dialysis treatment removed waste products from the body and is commonly expressed as a percentage.

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 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.SCT 1..1 A coded representation of a urea reduction ratio 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: true
obs_time IVL_TS 0..1 The date and time, or interval, of the urea reduction ratio observation.
value PQ 1..1 The value of the urea reduction ratio observation expressed as a percentage.

unit
Literal value(s): %


COMPONENT RELATIONSHIPS

Subject of relationships

Name Object of relationship Occurs Dependency
IsDerivedObservation BloodUreaObservation 0..* INDEPENDENT


Item of ENTRY Domain Models

UreaReductionRatio

Reference Model Type

PROPERTY_OBSERVATION_ELEMENT