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Test Code MTBS Microsporidia Stain

Reporting Name

Microsporidia Stain

Useful For

Diagnosis of extra-intestinal microsporidiosis involving the lung, skin, and other organs, particularly in immunocompromised hosts

 

Diagnosis of ocular microsporidiosis

Testing Algorithm

This test is intended to be ordered on specimens other than stool and urine.

 

See Parasitic Investigation of Stool Specimens Algorithm in Special Instructions.

Method Name

Trichrome-Blue Stain (Ryan Modification)

Performing Laboratory

Mayo Medical Laboratories in Rochester

Specimen Type

Varies


Specimen Required


Submit only 1 of the following specimens:

 

Specimen Type: Duodenal aspirate (small intestinal aspirate, jejunal aspirate, small bowel aspirate)

Container/Tube: Sterile container

Specimen Volume: 0.5 mL

Additional Information: Ecofix and 10% formalin are acceptable preservatives.

Specimen Stability Information: Preserved Ambient (preferred) <10 days/Refrigerated <3 days/Frozen

 

Specimen Type: Respiratory secretions (bronchoalveolar lavage [BAL], sputum, bronchial wash, pleural fluid)

Container/Tube: Sterile container

Specimen Volume: 0.5 mL

Specimen Stability Information: Refrigerated <3 days (preferred)/Frozen <10 days

 

Specimen Type: Eye (vitreous fluid, corneal swab or scraping, ocular fluid)

Container/Tube: Sterile container or swab

Specimen Volume: 0.5 mL

Specimen Stability: Refrigerated <3 days

 

Specimen Type: Fresh tissue (lung, eye, bladder, rectal, intestinal, colon, skin, muscle, kidney)

Container/Tube: Sterile container

Specimen Volume: 3-mm biopsy in 0.1-mL sterile saline

Specimen Stability: Refrigerated <3 days

 

Specimen Type: Gallbladder aspirate

Container/Tube: Sterile container

Specimen Volume: 0.5 mL

Specimen Stability: Refrigerated <3 days/Frozen <10 days


Specimen Minimum Volume

Duodenal aspirate, gallbladder aspirate, respiratory secretions, eye fluid: 0.5 mL

Specimen Stability Information

Specimen Type Temperature Time
Varies Varies

Reject Due To

Hemolysis

NA

Lipemia

NA

Icterus

NA

Other

NA

Reference Values

Negative

If positive, reported as Microsporidia detected

Day(s) and Time(s) Performed

Monday through Friday; 12 p.m.

CPT Code Information

87015-Concentration

87207-Stain

LOINC Code Information

Test ID Test Order Name Order LOINC Value
MTBS Microsporidia Stain In Process

 

Result ID Test Result Name Result LOINC Value
MTBS Microsporidia Stain 10857-1

Test Classification

This test uses a standard method. 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.