The RAS message may be created by the administering application (e.g., nursing application) for each instance of administration for an existing order. If the administering application wants to report several administrations of medication for a given order with a single RAS message, each instance is reported by a separate (repeating) RXA segment. In addition, the administration records for a group of orders may be sent in a single message by creating repeating groups of segments at the ORC level.
In the most common case, the RAS messages would be sent from a nursing application to the pharmacy or treatment application (or to the ordering application or another clinical application), which could use the data to generate the medication administration reports. Multiple RXA segments, each corresponding to a separate administration instance for a given order, may be sent with a single ORC.
RAS Pharmacy/Treatment Administration Chapter
MSH Message Header 2
[{NTE}] Notes and Comments (for Header) 2
[
PID Patient Identification 3
[PD1] Additional Patient Identification 3
[{NTE}] Notes and Comments (for PID) 2
[{AL1}] Allergy 2
[PV1 Patient Visit 3
[PV2]] Patient Visit Additional Information 3
{
ORC Common Order 4
[
RXO Pharmacy /Treatment Order 4
[
{NTE} Notes and Comments (for RXO) 2
{RXR} Pharmacy/Treatment Route 4
[
{RXC} Pharmacy/Treatment Component 4
[{NTE}] Notes and Comments (for RXC) 2
]
]
]
[
RXE Pharmacy/Treatment Encoded Order 4
{RXR} Pharmacy/Treatment Route 4
[{RXC}] Pharmacy/Treatment Component 4
]
{RXA} Pharmacy/Treatment Administration 4
RXR Pharmacy/Treatment Route 4
{[OBX Observation/Result 7
{[NTE]} Notes and Comments (for OBX) 2
]}
{[CTI]} Clinical Trial Identification 7
}
(acknowledged by)
RRA Pharmacy/Treatment Administration Acknowledgment Message Chapter
MSH Message Header 2
MSA Message Acknowledgment 2
[ERR] Error 2
[{NTE}] Notes and Comments (for Header) 2
[
[PID Patient Identification 3
[{NTE}]] Notes and Comments (for PID) 2
{
ORC Common Order 4
[
{RXA} Pharmacy/Treatment Administration 4
RXR Pharmacy/Treatment Route 4
]
}
]