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Methicillin Resistant Staphylococcus aureus (MRSA) by PCR, Nasal
3002032
Ordering Recommendation

Assist in assessing for MRSA in patients presenting with pneumonia. High negative predictive value.

Mnemonic
MRSA PCR
Methodology
Qualitative Polymerase Chain Reaction
Performed
Sun-Sat
Reported
WIthin 6 hours
New York DOH Approval Status
This test is New York DOH approved.
Submit With Order
ARUP Consult®
Disease Topics
Specimen Required
Patient Preparation
 
Collect
Nasal specimen from ESwab (ARUP supply #45877) available online through eSupply using ARUP Connect or contact ARUP Client Services at (800) 522-2787. Collect the nasal specimen by sampling both nares one at a time with the same ESwab. 
Specimen Preparation
Transfer Eswab to an ARUP Standard Transport Tube containing Liquid Amies Transport Medium. Place specimen in an individually sealed bag. 
Storage/Transport Temperature
Refrigerated 
Unacceptable Conditions
Specimen types other than those listed. Rayon swabs. 
Remarks
Specimen source required. 
Stability
Ambient: 24 hours; Refrigerated: 1 week; Frozen: Unacceptable 
Reference Interval
Not Detected
Interpretive Data
Negative nasal MRSA PCR has a high negative predictive value for MRSA pneumonia. Consider stopping Vancomycin if no other clinical indication. Contact Antimicrobial Stewardship or Infectious Diseases for further recommendations.

Note
The Xpert MRSA NxG test performance has not been evaluated in patients less than two years of age.
Hotline History
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Components
Component Test Code*Component Chart NameLOINC
3002033MRSA Detection by PCR72887-3
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.
Aliases