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Test Code URRP Ureaplasma species, Molecular Detection, PCR, Varies

Reporting Name

Ureaplasma PCR

Useful For

Rapid, sensitive, and specific identification of Ureaplasma urealyticum and U parvum from genitourinary, reproductive, bone, spine and joint, and lower respiratory sources

 

This test is not intended for medicolegal use

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Specimen Type

Varies


Necessary Information


Specimen source is required.



Specimen Required


The high sensitivity of amplification by polymerase chain reaction (PCR) requires the specimen to be processed in an environment in which contamination of the specimen by Ureaplasma DNA is not likely.

 

Submit only 1 of the following specimens:

 

Specimen Type: Swab

Supplies:

-Culturette (BBL Culture Swab) (T092)

-BD E-Swab (T853)

-Bartels FlexTrans VTM-3 mL (T892)

-Jiangsu VTM-3 mL (T891)

Sources: Vaginal, cervix, urethra, urogenital, chest/mediastinal; bronchus or lung (donor swab), or upper respiratory sources (only infants <3 months: nasopharynx, nose, throat)

Container/Tube:

Preferred: Culture swab transport system (Dacron or rayon swab with aluminum or plastic shaft with either Stuart or Amies liquid medium)

Acceptable: Swab in transport media: M4, M4-RT, M5, M6, universal transport media, or ESwab

Specimen Volume: 1 swab

Collection Instructions:

Vaginal:

1. Collect specimen by swabbing back and forth over mucosa surface to maximize recovery of cells.

2. Place swab back into swab cylinder.

Urethra or cervical:

1. Collect specimen by inserting swab 1 to 3 cm and rotating 360 degrees.

2. Place swab back into swab cylinder.

Wound:

1. Collect specimen by swabbing back and forth over wound surface to maximize recovery of cells.

2. Place swab back into swab cylinder.

 

Specimen Type: Fluid

Sources: Pelvic, peritoneal, amniotic, prostatic secretions, semen, reproductive drainage or fluid, pleural/chest, chest tube, pericardial, sputum, tracheal secretions, bronchial washings, bronchoalveolar lavage, lung; or nasal washings (only infants <3 months)

Container/Tube:

Preferred: Sterile container

Acceptable: Specimen in 3 mL of transport media: M4, M4-RT , M5, M6, or universal transport media

Specimen Volume: 1 to 2 mL

 

Specimen Type: Synovial fluid

Container/Tube:

Preferred: Lavender top (EDTA)

Acceptable: Pink top (EDTA), royal blue top (EDTA), sterile vial containing EDTA-derived aliquot, red top (no anticoagulant), or sterile container

Specimen Volume: 1 mL

Collection Instructions: Send specimen in original tube.

 

Specimen Type: Urine-first void, kidney/bladder stone, or ureter

Container/Tube: Sterile container

Specimen Volume: 10 mL or entire specimen

Collection instructions: Urine first void: Specimen can be collected at any time during the day. The patient should not have urinated for at least 1 hour prior to specimen collection. The first voided portion is the initial 20 to 30 mL of the urine stream obtained without cleaning the external urethra.

 

Specimen Type: Tissue

Sources: Placenta, products of conception, urogenital, respiratory, bronchus, chest/mediastinal, bone, spine, or joint

Container/Tube: Sterile container

Specimen Volume: 5 mm(3)

Collection Instructions:

1. Collect fresh tissue specimen.

2. Submit fresh tissue only, do not add fluid to tissue

3. Refrigerate or freeze specimen.


Specimen Minimum Volume

Fluid: 1 mL
Urine-first void: 2 mL
Swab: 1 swab
Tissue: 5 mm(3)

Specimen Stability Information

Specimen Type Temperature Time Special Container
Varies Refrigerated (preferred) 7 days
  Frozen  7 days

Reference Values

Not applicable

Day(s) and Time(s) Performed

Monday through Friday

Test Classification

This test was developed and its performance characteristics 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.

CPT Code Information

87798 x 2

LOINC Code Information

Test ID Test Order Name Order LOINC Value
URRP Ureaplasma PCR 69934-8

 

Result ID Test Result Name Result LOINC Value
SRC80 Specimen source 31208-2
35128 Ureaplasma urealyticum PCR 51988-4
35129 Ureaplasma parvum PCR 69933-0

Clinical Reference

1. Bharat A, Cunningham SA, Scott Budinger GR, et al: Disseminated Ureaplasma infection as a cause of fatal hyperammonemia in humans. Sci Transl Med. 2015 Apr;7(284):284re3

2. Stellrecht KA, Woron AM, Mishrik NG, Venezia RA: Comparison of multiplex PCR assay with culture detection of genital mycoplasmas. J Clin Microbiol. 2004 Apr;42:1528-1533

3. Farrell JJ, Larson JA, Akeson JW, et al: Ureaplasma parvum prosthetic joint infection detected by PCR. J Clin Microbiol. 2014 Jun;52(6):2248-2250

4. Waites KB, Bebear C: Mycoplasma and Ureaplasma. In: Carroll KC, Pfaller MA, eds. Manual of Clinical Microbiology. 12th ed. ASM Press; 2019;1117-1136

5. Kenny GE: Genital mycoplasmas: Mycoplasma genitalium, Mycoplasma hominis, and Ureaplasma species. In: Bennett JE, Dolin R, Blaser MJ, eds. Mandell, Douglas, and Bennett's Principles and Practice of Infectious Diseases. 9th ed. Churchill Livingstone; 2020;chap 184

Method Description

This polymerase chain reaction (PCR) method employs a target-specific detection system including primers, as well as fluorescent resonance energy transfer (FRET) hybridization probes designed for ureC gene of Ureaplasma urealyticum and Ureaplasma parvum. The LightCycler instrument amplifies and monitors target nucleic acid sequences by fluorescence during PCR cycling. This is an automated PCR system that can rapidly detect amplified product development. The detection of amplified products is based on the FRET principle. For FRET product detection, a hybridization probe with a donor fluorophore, fluorescein, on the 3' end is excited by an external light source, which emits light that is absorbed by a second hybridization probe with an acceptor fluorophore, LC-Red 640, on the 5' end. The acceptor fluorophore then emits light of a different wavelength that is measured with a signal that is proportional to the amount of specific PCR product. The process is completed in a closed tube system and the melting temperature of the probes allows differentiation of Ureaplasma urealyticum from Ureaplasma parvum.(Cunningham SA, Mandrekar JN, Rosenblatt JE, Patel R: Rapid PCR detection of Mycoplasma hominis, Ureaplasma urealyticum, and Ureaplasma parvum. Int J Bacteriol. 2013;2013:168742. doi: 10.1155/2013/168742)

Analytic Time

3 days

Reject Due To

Cotton or calcium alginate-tipped swab, wooden shaft swab, transport swab containing gel or charcoal
Formalin-fixed and/or paraffin-embedded tissues,
Port-a-Cul tube
Anaerobic fluid vials
Dry swab (no pledget or sponge)
Bone marrow
Decalcified bone
Slides
Reject

Method Name

Real-Time Polymerase Chain Reaction (PCR) using LightCycler and Fluorescent Resonance Energy Transfer (FRET)

Forms

If not ordering electronically, complete, print, and send a Microbiology Test Request (T244) with the specimen.

Secondary ID

60758