TAB Journal Spring 2018 - 19
It is the hospital's discretion as to how this happens, frequency
cycle, room selection and what code is used for analyzing.
7-1 for Endoscopy rooms, but FGI is addressing this to bring it
in line with CMC's Table 4A.
Critical Rooms typically include OR's, cardiac cath labs,
cystoscopy, endoscopy, Isolation suites, sterile supply,
decontamination and EVS rooms. Some facilities will include
clean workrooms, soiled workrooms, anesthesia storage,
emergency department waiting areas and labs.
The best approach for this testing is to communicate and consult
with the client. Ultimately the client needs to balance monitoring
and maintaining code compliance, patient and personnel safety,
minimizing exposure to liability, and budget concerns.
Frequency cycles vary but generally hospitals will perform an
internal check of room pressures on a more frequent basis and
have 3rd party confirmation by a TAB firm performed annually.
The majority of hospitals are currently testing on an annual
cycle but a few have adopted 6-month cycles for procedure
rooms (OR's, cardiac cath labs, cystoscopy, endoscopy).
Code requirements that are tested include Room Pressures, Total
AC/H rates, Min. OA AC/H rates and sometimes temperature
and humidity. Some facilities use California Mechanical Code's
Table 4A, FGI's Table 7-1 and less frequently AORN. The
majority of facilities use CMC Table 4A because that was the
code used to construct the facility, but in some cases the Joint
Commission is "leaning" towards FGI (Federal Guidelines
Institute which incorporates ANSI/ASHRAE/ASHE 170). There
has been a room pressure conflict between Table 4A and Table
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TAB Journal Spring 2018