This document provides an explanation of the PAS
integration with Guardian. This document
is not intended to provide a
detailed explanation of the internally processes, but rather, a higher level
functional explanation. The K2MS Generic HL7 Specification pdf embedded on this
page provides further detail.
PAS Integration
The K2MS Guardian PAS interface is an ‘always-on’
service that runs either on the database or web server. This service passively (information flows in
only) listens for PAS messages being sent via the hospital's PAS system.
When a message is received, the action taken by the
Guardian PAS interface will depend on the patient record status
New Patient Record
If
the patient does not exist, a temporary patient record is created within
the database. This uses the hospital ID, firstname, surname and date
of birth.
Any
additional information received relating to a pregnancy is stored in a
separate ‘holding’ (Additional PAS Information) table for use when the
patient is admitted. This includes parity, gravida, expected date of
confinement, specialist consultant and the public/private flag.
As
further messages are received these are processed in the same way with the
data being written directly into the patient record or the additional PAS
information table as required.
Initial Patient
Admittance
When
the user enters a hospital ID, Guardian searches for a matching record in
the database. To admit the patient,
the user must confirm the patient’s name and date of birth.
As
the user progresses through the admittance process any details relating to
the patient held in the additional PAS data are retrieved and used to
populate the admittance wizards. This includes parity, EDC, public/private flag, etc.
The
user can review and, if necessary, alter the additional information as the
admittance wizards are worked through.
At
the end of the admittance process, the user authenticates this data which
is then written to the pregnancy case records and becomes the definitive
source of information for that patient for the current pregnancy.
Any
further update messages from PAS for that patient are processed in the
same way as above with both the patient details record and additional PAS
information table being updated.
PAS Demographic
updates Following Initial Admittance
If a PAS message with changes to the patient
demographics is received, the patient details are automatically updated.
However, if a patient is already admitted to a bedside Portal, these changes
will not be seen until the patient is re-admitted.
PAS Additional
Information Updates Following Initial Admittance
If a PAS message with changes to the additional
information (e.g. parity, public/private flag, etc.) is received, this data is
stored in the additional PAS information table but is not used to automatically
update the relevant pregnancy tables.