ACK_R01
7.2.1 ORU/ACK - unsolicited transmission of an observation message (event R01)
2 segments
With the type (OBX) defined in this chapter, and the OBR defined in Chapter 4, one can construct almost any clinical report as a three-level hierarchy, with the PID segment defined in Chapter 3 at the upper level, an order record (OBR) at the next level and one or more observation records (OBX) at the bottom.
One result segment (OBX) is transmitted for each component of a diagnostic report, such as an EKG or obstetrical ultrasound or electrolyte battery.
Message Structure
2 segments
R RequiredO Optional Choice
MSH
R1MSA
R1