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To view specimen requirements and codes please select your laboratory:

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Test Code


CPT Code(s)


Preferred Specimen(s)

Specimen Type Refer to Special Handling Instructions
Specimen State Refrigerated (cold packs)
Use only the following for specimen collection: Amies*
Liquid Collection tube; Stuart's Liquid Collection tube.

Nasal swab: Swab must be inserted into nostril up to 2.5
cm (1 inch) from the edge of the nare and rolled 5 times.
Repeat using same swab in the other nostril. Return swab
to its container immediately and perform asasy.

* New York State approval is pending for Amies Liquid
collection device. This specimen type is not available
for NYS patient testing.

Nasal swab:Collect in BBL(TM) CultureSwab (TM) Liquid Amies,
Single Swab (Cat No. 220093)

Nasal swab: Collect in Copan Venturi Transystem(TM) Liquid
Amies - Single Swab (Cat. No. 140C) (Stock Clerk # 3184(

Nasal Swab: Collect in Copan Venturi Transystem(TM) Liquid
Stuart - SIngle Swab (Cat No. 141C) (Copan Diagnostics Inc.)

Using recommmended swab, carefully collect nasal specimens
and place in Liquid Stuart Medium or Amies Liquid medium
for transport to the laboratory.
Specimens should be kept between 2-30 degrees C during
tranpsort. Protect against freezing or exposure to
excessive heat. Specimens with evidence of potentially
interfering subtances (e.g., blood, excessive nasal
secretions, etc.) should be tested within 24-36 hours;
otherwise, specimens can be stored up to 5 days at 2-8
degrees C before testing. Specimens that can be tested
within 36 hours can be kept at room temperature (15-30
degrees C).

Room temperature: 24 hours
Refrigerated: 5 days
Frozen: Unacceptable

Reject Criteria:
Received room temperature*Received Frozen*Specimens
exceeding stability*Specimens in leaking or broken
containers*Non-validated specimen types*Amies gel
collection tubes


Polymerase Chain Reaction (PCR)

Performing Laboratory


Setup Days


Report Available


Reference Range(s)

Not detected

Clinical Significance

This assay is used to detect the presence of Methicillin-Resistant Staphylococcus aureus (MRSA) DNA in a patient's nasal swab specimen. The use of real-time PCR to detect the presence of MRSA DNA in clinical specimens allows for rapid patient testing.

LOINC®' Code(s)

The Result and LOINC information listed below should not be used for electronic interface maintenance with Quest Diagnostics. Please contact the Quest Diagnostics Connectivity Help Desk for more information at 800-697-9302.

NOTE: The codes listed in the table below are not orderable Test Codes.

Result NameLOINC CodeComponent Name
Z491SOURCE31208-2Specimen source
Z492MRSA RT-PCR35492-8Staphylococcus aureus.methicillin resistant DNA

Reference ranges are provided as general guidance only. To interpret test results use the reference range in the laboratory report.

The CPT codes provided are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payer being billed.

LOINC assignment is based on a combination of test attributes, including the method used by the performing laboratory. For tests not performed by Quest Diagnostics, codes are assigned by the performing laboratory.

* The tests listed by specialist are a select group of tests offered. For a complete list of Quest Diagnostics tests, please refer to our Directory of Services.