EPIC BRIDGES EXAM 2024 WITH QUESTIONS &
VERIFIED ANSWERS GRADED A+
Does every HL7 message have to be encoded with the characters 1A-& ? - ANSWER-No, the encoding characters can be any printable character.
Imagine that your message begins with MSHIA&1. How would you encode the string "Th result is positive & has a value of 2.7 x 10A3."? - ANSWER-The result is positive \T\ has a value of 2.7 x 10\S\3.
Why is the NTE segment special? - ANSWER-Context; its meaning depends on the segment it follows
What is the difference between receiving an empty field |I and the delete sequence ? - ANSWER-An empty field is ignored by the interface, whereas the delete character will delete information from the database, assuming the field in question supports the delete character.
Aside from HL7 Version 2, name two other standards supported in Bridges? - ANSWER-X12, FHIR, NCPDP, DICOM, and Direct.
What is Bridges? - ANSWER-Epic's interfacing messages along with the application. It consists of both the interface infrastructure to build, send, receive, and file messages along with the tools and utilities to maintain those interfaces
What are stored in the Event Queue, Data Queue, and Control Queue? - ANSWER-The Event Queue contains the information needed to build a message. 1 / 4
Usually this is a patient ID, an encounter DAT, and the type of message to be built, amongst other information.The Data Queue contains the text of HL7 messages and additional metadata.The Control Queue is a to-do list of message numbers to send or file.
Are messages ever manually deleted from the Data Queue? - ANSWER-No, never.They are purged only by an automated purge job.
What are two ways that interface messages are sent and received? - ANSWER- TCP/IP with an interface engine is the most common communication method.Interconnect is used for HTTPS or other communication outside your local network.Trigger - ANSWER-Serves as the integration point between the application workflow and Bridges
-generally an action in Hyperspace, like clicking a button or closing an activity
-a single, clearly defined action that a user or process can take that results in an interface message being created and sent
An interface message contains.... - ANSWER-Data about an event (like a patient being admitted to the hospital)
MSH-11 and MSH-12 are... - ANSWER-the HL7 processing ID and version; Epic checks these values on an incoming message and rejects the message if they do not match the expected values
Segment Identifier - ANSWER-Three character code that identifies what kind of data that segment contains 2 / 4
PID-5 - ANSWER-patient name
NTE segment - ANSWER-can follow many different segments
Z-segment - ANSWER-custom segment for a specific implementation
Is it necessary to send empty fields following the last valued field? - ANSWER-No
Within a field do you need to send all components? - ANSWER-Only as many as are valued
Blank fields... - ANSWER-don't file anything
Delete character HL7 - ANSWER-double quotes " "--- tells the receiving system to delete a piece of info it has
FHIR - ANSWER-specifies RESTful exchange method via HTTPs to access data
Other standards supported by Bridges - ANSWER-X12, FHIR, NCPDP, DICOM, and Direct
Event (in context of outgoing message flow) - ANSWER-small set of values with
the necessary info to build the message: patient ID, patient contact, type of
message, and additional info
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-contains directions for where the interface should pull the information it needs from the database
Queue - ANSWER-storage location outside of Chronicles database structure
Event Queue is procesed by... - ANSWER-the Event Daemon
Daemon (Outgoing Message Flow) - ANSWER-process that runs in the background without any direct user action
Event Daemon (Outgoing Message Flow) - ANSWER-pulls an event off the Event Queue, uses the information in the event to build the message and finally deletes the event from the event queue.
The event daemon puts the message it has built onto the data queue and adds an instruction to the Control Queue
builds an HL7 message based on data pulled from Chronicles
Data Queue (Outgoing Message Flow) - ANSWER-contains the full text of the message along with some additional metadata (i.e. timestamp) about message processing
Control Queue (Outgoing Message Flow) - ANSWER-a to-do list and contains very little data -processed by the Communications Daemon -maintains a list of messages waiting to be processed
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