Geisinger Medical Laboratories Test Catalog

Order Display Name: Geisinger Epic Procedure Code Or ID CPT Code:  


TEST RESTRICTION: Orderable only by laboratory staff for non-Geisinger clients.

Geisinger Epic Procedure Code: LAB3413             Geisinger Epic ID: 14602

Specimen type:
Bacillus spore strips. Green: ethylene oxide. Brown: Steam. Blue: Steam (flash).
Special notes:
Check expiration date/condition of media before use. Check indicator strip on spore strip to assure it was autoclaved properly. Required to submit a positive control (unsterilized Attest) of the same lot number as the sterilized Attest as control. Must submit with test.

Specimen processing instructions:
Do not crush attest ampule 
Transport temperature:
Room temperature (18-25°C).
Specimen stability:
Stable for < 24 hours at room temperature
Rejection criteria:
Improperly labeled/identified specimen. Attest ampule crushed before transport. Greater than 24 hours after spore strip was placed in an autoclave run. No positive control submitted with spore strip.

Reference interval:
Critical values/courtesy alerts:
CPT code(s):
Note: The billing party has sole responsibility for CPT coding.  Any questions regarding coding should be directed to the payer being billed.  The CPT codes provided by GML are based on AMA guidelines and are for informational purposes only.
Test includes:
Determines antibacterial effectiveness of steam and ethylene oxide sterilizers
Clinical significance:
Positive test result (growth of spores) may be indicative of improper function of sterilizer
Doctoral Director(s:)
Donna Wolk PhD, D(ABMM), Raquel Martinez, PhD, D(ABMM)    
Review Date: 12/31/2022

Performing Locations

Geisinger Medical Center

Performing laboratory: Microbiology
Technical Lead: Francis Tomashefski
Frequency: Daily 1st shift
Performed STAT? No
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