Methicillin-resistant Staphylococcus aureus (MRSA), NAA
Also known as: MRSA NAA, MRSA PCR
Use
MRSA by NAA is a qualitative in vitro diagnostic test for the direct detection of nasal colonization by methicillin-resistant Staphylococcus aureus (MRSA) to aid in the prevention and control of MRSA infections in health care settings.
Special Instructions
Not provided.
Limitations
MRSA by NAA is not intended to diagnose MRSA infections nor to guide or monitor treatment for MRSA infections. Concomitant cultures are necessary to recover organisms for epidemiological typing or for further susceptibility testing. The test performance has not been evaluated in patients less than two years of age.
Methodology
PCR-based (NAA)
Biomarkers
Methicillin-resistant Staphylococcus aureus (MRSA)
Microorganism
LOINC Codes
- 35492-8 - MRSA DNA Spec Ql NAA+probe
- 35492-8 - MRSA DNA Spec Ql NAA+probe
Result Turnaround Time
1-3 days
Related Documents
For more information, please review the documents below
Specimen
Nasal Swab
Volume
Dual swab (preferred) or ESwab (preferred) or single swab
Minimum Volume
Dual swab; 1 ESwab
Container
Dual rayon swab in Liquid Stuart Media, scored; or 1 flocked swab in ESwab transport
Collection Instructions
Follow your institution's guidelines for collecting nasal swab specimens using a recommended collection and transport device, or using the following instructions: When using the dual rayon swabs, keep both swabs attached to the red cap at all times. Holding the swab cap with both swabs attached, sample each nare one at a time. Place the dual swab specimens into the transport tube containing the Liquid Stuart Medium. When using the ESwab, collect the nasal specimen by sampling both nares one at a time with the same swab. Place the swab into the transport tube containing the Liquid Amies Transport Medium (ESwab Medium).
Storage Instructions
Refrigerated (preferred)
Causes for Rejection
Inappropriate transport or storage conditions; name discrepancy or unlabeled specimen; expired swab transport; wire-shaft swab; swab broken at scoreline; nonflocked swab received in ESwab transport
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | 24 hours (Avoid; recommend refrigerated submission) |
| Refrigerated | 7 days |
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