Cyclospora Smear, Stool

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Turnaround Time: 3 - 6 days
CPT Code:

87015, 87206

Test Type: 5 g Stool


Use: Detect Cyclospora

Limitations: The organisms are most readily demonstrated in diarrheal stools rather than formed stools.

Methodology: Modified Kinyoun stain and autofluorescence


Collection Details:

Collection Instructions:

Specimen: Stool

Volume: 5 g

Minimum Volume: 5 g (Note: This volume does not allow for repeat testing.)

Container: Parasite (O & P) transport with formalin (Para-Pak® pink)

Collection: Fecal specimens for parasitic examination should be collected before initiation of antidiarrheal therapy or antiparasitic therapy. The highest yield on hospitalized patients occurs when diarrhea is present on admission or within 72 hours of admission. The onset of diarrhea more than 72 hours after admission is usually caused by Clostridium difficile toxin rather than parasites or the usual stool pathogens. The following recommendations are made for efficient and cost-effective diagnosis of diarrheal disease in patients admitted with gastroenteritis.

  • Submit one or two specimens per diarrheal illness immediately. Consider requesting the EIA for Giardia (see Giardia lamblia, EIA and Ova and Parasites Examination [188110] and Giardia lamblia, Direct Detection EIA [182204]) if that is the primary suspected organism.
  • If those are negative, submit an additional specimen after five days.
  • Patients who are immunocompromised by AIDS, malignancy, or immunosuppressive therapy may require additional testing for unusual stool pathogens (eg, Cryptosporidium, Direct Detection EIA [183020]).