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Sample Messages: Transactions from the monitor HL7 interface
 OBR — Observation request segment
 OBX — Observation result segment(s)
The structure of an ORU message looks like this:
MSH
PID
PV1
{
OBR
{OBX}
}
 All message segments are terminated using a segment separator character, 
which defaults to a carriage return.
 The open and closed braces { } represent segments and segment groups.
 Segments enclosed in square brackets [ ] are optional.
 Trailing data fields for a segment are truncated if empty.
Result Message Examples 
Following are several examples of the many possible HL7-formatted result 
messages.
The monitor HL7 outbound interface can generate countless variations of these 
examples.
Example 1
This example has one OBR segment followed by the corresponding OBX 
segments collected at a user-configured time interval. The OBX segments 
contain periodic vital sign data for heart rate, PVC, temperature, and invasive 
blood pressures.
MSH|^~\&|VSP^080019FFFE134535^EUI-64|GE 
Healthcare|||20130122134100||ORU^R01^ORU_R01|00409713
4535|P|2.6|||NE|AL||UNICODE UTF-8|||PCD_DEC_001^IHE 
PCD^1.3.6.1.4.1.19376.1.6.1.1.1^ISO
PID|||HED12^^^PID^MR||LAZY^KITTY^^^^^L|||
PV1||R|SURGERY^^V2
OBR|1|080019FFFE13453520130122134100^VSP^080019FFFE13
4535^EUI-
64|080019FFFE13453520130122134100^VSP^080019FFFE13453
5^EUI-64|182777000^monitoring of 
patient^SCT|||20130122134100
OBX|1||69965^MDC_DEV_MON_PHYSIO_MULTI_PARAM_MDS^MDC|1
.0.0.0|||||||X