Chat
Methicillin Resistant Staphylococcus aureus (MRSA) by PCR, Nasal
Copy Utility
Ordering Recommendation
Assist in assessing for MRSA in patients presenting with pneumonia. High negative predictive value.
Mnemonic
Methodology
Qualitative Polymerase Chain Reaction
Performed
Sun-Sat
Reported
Within 48 hours
New York DOH Approval Status
Specimen Required
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.
Transfer Eswab to an ARUP Standard Transport Tube containing Liquid Amies Transport Medium. Place specimen in an individually sealed bag.
Refrigerated
Specimen types other than those listed. Rayon swabs.
Specimen source required.
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.
FDA
Note
The Xpert MRSA NxG test performance has not been evaluated in patients less than two years of age.
Hotline History
Hotline History
CPT Codes
87641
Components
| Component Test Code* | Component Chart Name | LOINC |
|---|---|---|
| 3002033 | MRSA Detection by PCR | 72887-3 |
Feedback
