Sign in →

Test Code MGRNA Neisseria gonorrhoea, Miscellaneous Sites, by Nucleic Acid Amplification (GEN-PROBE)

Important Note

Test MGRNA is sent out to Mayo only for sources other than genital and urine.  For testing for female urine/swab specimens and for male urine specimens, please see test CTNGPC.


Reporting Name

N. gonorr, Misc, Amplified RNA

Useful For

Detection of Neisseria gonorrhoeae

Testing Algorithm

This test is used for specimens that are not FDA approved for this assay. Acceptable non-FDA-approved specimen types are ocular, oral, anal or rectal swabs, and peritoneal fluid.

Method Name

Transcription Mediated Amplification

Performing Laboratory

Mayo Medical Laboratories in Rochester

Specimen Type


Specimen Required

Specimen source is required.


Submit only 1 of the following specimens:


Swab specimen must be collected using an APTIMA Collection Unisex Swab (T583) or APTIMA Collection Vaginal Swab (T584). These swabs are contained in the APTIMA Collection Kit.



APTIMA Collection Unisex Swab (T583)

APTIMA Collection Vaginal Swab (T584)

APTIMA Specimen Transfer Tube (T652)

Specimen Type: Oral/throat or ocular (corneal/conjunctiva) or rectal/anal

Container/Tube: APTIMA Swab Collection System (T583)

Specimen Volume: Swab

Collection Instructions:

1. Swab site using APTIMA Collection Unisex Swab.

Note: The white swab provided within the collection kit is a cleaning swab and should not be used for collection. Discard the white cleaning swab.

2. Place swab in transport tube provided in collection kit. Snap off swab at score line so swab fits into closed tube.

3. Cap tube securely, and label tube with patient's entire name, and date and time of collection.

4. Transport swab container to laboratory and store (refrigerated is preferred) within 60 days of collection.


Specimen Type: Peritoneal fluid (pelvic wash, cul-de-sac fluid)

Container/Tube: APTIMA Specimen Transfer Tube (T652)

Specimen Volume: 1 mL

Collection Instructions:

1. Transfer 1 mL of specimen into the APTIMA Specimen Transfer Tube (T652) within 24 hours of collection.

2. Cap tube securely, and label tube with patient's entire name, and date and time of collection.

3. Transport APTIMA Specimen Transfer Tube to laboratory (refrigerated is preferred) within 30 days of collection.

Specimen Minimum Volume

Peritoneal Fluid: 1 mL

Specimen Stability Information

Specimen Type Temperature Time
Varies Refrigerated (preferred)

Reject Due To








Sources other than those listed above.

Reference Values


Day(s) and Time(s) Performed

Monday through Saturday; varies

CPT Code Information


LOINC Code Information

Test ID Test Order Name Order LOINC Value
MGRNA N. gonorr, Misc, Amplified RNA In Process


Result ID Test Result Name Result LOINC Value
SRC22 SOURCE: 31208-2
34508 N. gonorr, Misc, Amplified RNA 43305-2

Analytic Time

1 day

Test Classification

This test has been modified from the manufacturer's instructions. Its performance characteristics were determined by Mayo Clinic in a manner consistent with CLIA requirements. This test has not been cleared or approved by the U.S. Food and Drug Administration.