Geisinger Medical Laboratories Test Catalog

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


Geisinger Epic Procedure Code: LAB3086         Geisinger Epic ID: 46338

Specimen type:
Nasal swab, nares swwab, nose swab
Preferred collection container:
Alternate Collection Container:
Copan Venturi Transystem Liquid Stuart single or double swab
Cepheid sample collection device
BBL CultureSwab Liquid Stuarts single or double swab
Special notes:
See Microbiology Collection Appendix for collection instructions. Check expiration date on transport device before use.

Specimen processing instructions:
Specimens which are bloody or contain excessive nasal secretions should be received and tested within 24 hours of collection. 
Transport temperature:
Room temperature (15-25°C). Temperature of 2-30°C is acceptable.
Specimen stability:
All swab types: 2-8°C for 5 days. Room temperature (15-25°C) = 24 hours.
Rejection criteria:
Improperly labeled/identified specimens. Specimens which exceed stability limits. Expired collection device/swab. Collection of specimen with non-approved swab types. Improper specimen type.

Reference interval:
Negative. No methicillin-sensitive Staphylococcus aureus detected by PCR (Amplified Probe). Negative. No methicillin-resistant Staphylococcus aureus detected by PCR (Amplified Probe).
Critical values/courtesy alerts:
Positive. Methicillin-resistant Staphylococcus aureus detected by PCR (Amplified Probe).
CPT code(s):
87640, 87641
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:
The direct detection of nasal colonization by methicillin-sensitive S. aureus (MSSA) staphylococcal protein (spa) gene and/or methicillin-resistant S. aureus (MRSA) Staphylococcus chromosomal cassette (SCC) gene targets to aid in the prevention and control of MSSA and MRSA infections in healthcare settings.
Real-time Polymerase Chain Reaction (PCR)
MSSA, pre-surgical screens, MRSA, MDRO, S. aureus, Methicillin resistant Staphylococcus aureus, PCR, Staph PCR, S. areus PCR, MRSA PCR, MRSA Screen, MRSA Nasal Screen, Nasal Screen, Nares Screen, Nares PCR, MRSA screen, admission, HAI, surveillance
Clinical significance:
Nasal colonization with MSSA and/or MRSA has been shown to be a significant risk factor for transmission of MSSA and MRSA to other hospitalized or institutionalized patients. Colonization may also lead to self-infection.
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: Barbara Heiter
Frequency: Daily, all shifts
Performed STAT? No
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