Ova and Parasites Examination, Urine
Use
Establish the diagnosis of parasitic infection, primarily with Schistosoma haematobium
Special Instructions
Include any pertinent clinical and travel history on the test request form for a comprehensive analysis. Both 24-hour and spot urine samples should be examined to enhance detection. The egg excretion pattern of Schistosoma haematobium follows a circadian rhythm, with a peak between noon and 3 PM. Physical exercise combined with fluid intake before urination can enhance egg output.
Limitations
In cases of very light or chronic infections, eggs may be difficult to detect, necessitating multiple urine sample examinations. Additionally, occasionally eggs of Schistosoma mansoni may be detected in urine, which can complicate the diagnosis. One negative specimen does not rule out the possibility of a parasitic infection, hence repeat tests may be needed.
Methodology
Microscopy
Biomarkers
LOINC Codes
- 75665-0
Result Turnaround Time
3-7 days
Related Documents
For more information, please review the documents below
Specimen
Urine
Volume
15 mL
Minimum Volume
3 mL
Container
Sterile cup, urine container, or Para-Pak® white (without preservative)
Collection Instructions
For suspected Schistosoma haematobium, collect urine sample without preservatives at midday.
Storage Instructions
Maintain specimen at room temperature.
Causes for Rejection
Grossly leaking specimens; unlabeled specimen or name discrepancy between specimen and test request label
Other tests from different labs that may be relevant