
These add-on critical test results
messaging (CTRM) systems, as they are called, are especially important if there
are critical test results that need to be acted on within a very short and
defined time period. This is important for radiology results and for other
imaging specialties, especially cardiology, but even more for lab results.
The classic example of such a result
is when a radiologist observes a critical finding at 5 pm on Friday afternoon,
which needs to be taken care of within the next four hours, and the patient has
already been discharged, and the referring physician is unavailable after
hours. In these cases, there has to be a well-defined chain of communication of
that test result to the appropriate physician, with confirmation of the interpreted
result and the action taken.
A special case of a critical result
report is the ER discrepancy report, whereby an ER physician might have discharged
the patient having missed a fracture or other important finding. I have first-hand
experience with such a situation when my daughter, a few years back, went on a
school trip to Colorado in the winter. The car with six students ended up in a
ditch because of slippery weather. The students were transported to the ER, and
subsequent X-rays did not show anything at first reading. The students continued
on their school trip, and a radiologist came in the next morning and noticed a
neck fracture in my daughter’s friend’s X-ray, and it took them another day or
so to locate the girls in the lodge where they were staying. She was instructed
to go back to the hospital immediately to be fitted with a neck brace. If a
reliable means of communication between the ER physician, radiologist and
patient had been in place, the potential risk would have been avoided.
CTRM systems are provided by
several vendors, each with varying functionality. They can be integrated with
the PACS, RIS, reporting system, or EMR. Most systems are tightly connected
through a proprietary API interface. The workflow supported by these systems
depends on the configuration capabilities. One should also make sure it
supports the workflow that is used within your institution. It is possible to
use one system for multiple specialties, or having multiple systems for each
department, each with their own interfacing challenges.
When planning to purchase a CTRM
system, one should perform a due diligence investigation that includes defined
specifications for the requirements, test and acceptance criteria and site visits
of installed systems in a similar environment. Otherwise it might not meet the
requirements. More details can be found
in this video showing
a discussion about the implementation steps.