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Test Code MSPE Microsporidia Exam [3562X]

Specimen Required

5 grams or 5 mL stool

Specimen Minimum Volume

Stool or Duodenal fluid. 2 g or 2 mL Urine, CSF, BAL: 2 mL

Specimen Stability

Stool, Duodenal, and Corneal scrappings
Room temperature: 30 days
Refrigerated: 30 days
Frozen: Unacceptable

Urine, CSF, and Bronchoalveolar lavage
Room temperature: Unacceptable
Refrigerated: 7 days
Frozen: Unacceptable

Rejection Due To

Unpreserved stool • Stool in Cary-Blair or PVA • Received frozen

Report Available

Set up: Mon, Thurs a.m.; Report available: Next day

Method Name



Smear and Concentration (if performed)

Collection Container / Tube

Preferred: 10% Formalin Container
Other Acceptable Container: Total-Fix Transport Medium

Transport / Storage Conditions

Stool or Duodenal fluid or Corneal scrapings: Room temperature
Urine, CSF, or BAL: Refrigerated (cold packs)

Special Instructions

1. Stool duodenal aspirates fixed in 10% formalin or Total-Fix®.
2. Urine sediments, CSF, BAL/Nasal secretions: preferred in sterile container, acceptable on microscope slide, methanol (or 10% formalin).
3. Conjunctival/corneal scrapings, preferred on microscope slide, methanol (or 10% formalin). Ship preserved specimens at room temperature (preferred).

Reference Values

See Laboratory Report

Day(s) Performed

Set up: Mon, Thurs a.m.; Report available: Next day

CPT Codes


Clinical Reference

Microsporidia infection was first recognized as a cause of chronic diarrhea in patients infected with HIV. Microsporidia may also cause pneumonia, acute bilateral keratoconjunctivitis, and infection of the biliary and pancreatic ducts.