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- Cyclospora cayetanensis
- CLB Smear
Examination of oocysts of Cyclospora
Expected Turnaround Time
3 - 6 days
Turnaround time is defined as the usual number of days from the date of pickup of a specimen for testing to when the result is released to the ordering provider. In some cases, additional time should be allowed for additional confirmatory or additional reflex tests. Testing schedules may vary.
For more information, please view the literature below.
Parasite (O & P) transport with formalin (Para-Pak® pink)
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  and Giardia lamblia, Direct Detection EIA ) 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 ).
Maintain specimen at room temperature.
Causes for Rejection
Inappropriate specimen transport conditions (eg, frozen) or device; improper labeling; specimen received after prolonged delay (usually more than five days); leaking specimen; specimen received in denture cup, “Cool Whip” container, margarine container, or similar container
The organisms are most readily demonstrated in diarrheal stools rather than formed stools.
Modified Kinyoun stain and autofluorescence
No Cyclospora oocysts observed
Cyclospora cayetanensis is a coccidian parasite first associated with human infection in 1977. Before 1966, there had been documentation of only a few outbreaks. In 1966, there were outbreaks in 10 states and Canada that were associated with the consumption of raspberries. More than 850 laboratory confirmed cases were reported to the Centers for Disease Control and Prevention (CDC) in May and June, 1996.
|Order Code||Order Code Name||Order Loinc||Result Code||Result Code Name||UofM||Result LOINC|
|183145||Cyclospora Smear, Stool||10659-1||183146||Cyclospora Smear, Stool||10659-1|