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22514 Culture, Methicillin Resistant Staph. aureus (MRSA) Screen

Culture, Methicillin Resistant Staph. aureus (MRSA) Screen
Test Code: MRSA
Synonyms/Keywords
​Oxacillin Resistant Staph. aureus (ORSA)
Specimen Requirements
Specimen Type Preferred Container/Tube Acceptable Container/Tube Specimen Volume Specimen Minimum Volume
(allows for 1 repeat)
Pediatric Minimum Volume
(no repeat)
Swab​: Nares ESwab ​Other Amies medium based swab ​1 swab 1 swab ​1 swab
Collection Processing Instructions

​Specimens should be delivered to the microbiology laboratory as soon as possible. Culture of specimens older than 24 hours may lead to a reduction in recovery of microorganisms.

Swabs:

- ESwab: collect one swab for Gram stain, aerobic and anaerobic cultures, and an additional swab for each additional culture type or stain (e.g. fungus or mycobacteria).

- Other Amies medium swab types: collect one swab for every culture and stain (including Gram) to be ordered.

See ESwab collection video for more information

Specimen Stability Information
Specimen Type Temperature Time
​Swab ​ Room Temperature <=4 hours​
​Refrigerate ​> 4 hours
Rejection Criteria
Dry swabs
​Specimens older than 4 days
Performing Laboratory Information
Performing Location Day(s) Test Performed Analytical Time Methodology/Instrumentation
​Marshfield Monday through Sunday​ 1 day​ Chromogenic culture, manual or automated identification methods and nucleic acid sequence analysis as needed.
Test Information
This culture only detects the carriage of Methicillin resistant Staphylococcus aureus (MRSA) in the nares. No antimicrobial susceptibility testing will be performed. For diagnostic culture of MRSA, order Culture, Aerobic-with Susceptibilities, commenting 'rule out MRSA'.
 
'ESwab' is a trademark of Copan Diagnostics.
Reference Range Information
Performing Location Reference Range
All Performing Sites No MRSA isolated​
Outreach CPTs
CPT Modifier
(if needed)
Quantity Description Comments
87081​ ​​Culture, presumptive, pathogenic organisms, screening only
​87147 ​Immunologic method, agglutination
Synonyms/Keywords
​Oxacillin Resistant Staph. aureus (ORSA)
Ordering Applications
Ordering Application Description
​Centricity ​Cult. MRSA Screen
​Cerner ​MRSA Screen Culture
If the ordering application you are looking for is not listed, contact your local laboratory for assistance.
Specimen Requirements
Specimen Type Preferred Container/Tube Acceptable Container/Tube Specimen Volume Specimen Minimum Volume
(allows for 1 repeat)
Pediatric Minimum Volume
(no repeat)
Swab​: Nares ESwab ​Other Amies medium based swab ​1 swab 1 swab ​1 swab
Collection Processing

​Specimens should be delivered to the microbiology laboratory as soon as possible. Culture of specimens older than 24 hours may lead to a reduction in recovery of microorganisms.

Swabs:

- ESwab: collect one swab for Gram stain, aerobic and anaerobic cultures, and an additional swab for each additional culture type or stain (e.g. fungus or mycobacteria).

- Other Amies medium swab types: collect one swab for every culture and stain (including Gram) to be ordered.

See ESwab collection video for more information

Specimen Stability Information
Specimen Type Temperature Time
​Swab ​ Room Temperature <=4 hours​
​Refrigerate ​> 4 hours
Rejection Criteria
Dry swabs
​Specimens older than 4 days
Reference Range Information
Performing Location Reference Range
All Performing Sites No MRSA isolated​
For more information visit:
Performing Laboratory Information
Performing Location Day(s) Test Performed Analytical Time Methodology/Instrumentation
​Marshfield Monday through Sunday​ 1 day​ Chromogenic culture, manual or automated identification methods and nucleic acid sequence analysis as needed.
For billing questions, see Contacts
Outreach CPTs
CPT Modifier
(if needed)
Quantity Description Comments
87081​ ​​Culture, presumptive, pathogenic organisms, screening only
​87147 ​Immunologic method, agglutination
For most current information refer to the Marshfield Laboratory online reference manual.