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HelpTest Code MCRYM Microscopy, Cryptosporidium, Cyclospora, Cystoisospora
Additional Codes
| Epic Ordering Code | LAB5008 |
|---|---|
| NBS code | LBC00298 |
| Service code | 23221 |
Specimen Requirements
Submit one of the following
| Preferred: |
| Stool container |
Specimen Type: Stool
Container/Tube: Sterile screw-capped container with attached spatula
Volume: 10.0g / 5.0mL
Minimum Volume: 5.0g (size of a grape) / 2.0mL (liquid stool)
Collection Instructions: Random collection
Specimen Stability and Condition
Preferred temperatures for storage prior to and during shipping to NUH
| Specimen Type | Stool |
|---|---|
| Ambient | Submit to lab as soon as possible (within one hour post collection) * |
| Refrigerate/Frozen | Do not refrigerate or freeze sample |
| Unacceptable conditions |
More than 1 stool specimen received on the same day.
|
*Specimen should be collected in a transport medium (e.g. Cary Blair transport medium) for preservation if prolonged transportation is expected.
Methodology
Microscopy
Days and Times Performed
Monday through Sunday, TAT 1 - 3 days
Reference Interval
Not seen.
Testing Laboratory
National University Hospital
Clinical Microbiology, 67724343
Useful For
Diagnosis of diarrhea due to the above organisms.
They are especially relevant in immunocompromised patients, including patients with HIV, in unexplained outbreaks and in some cases of travellers’ diarrhoea.
Update
Last updated 8/9/2026