Aiding in the diagnosis of schistosomiasis infections involving the urinary tract
Microscopic
Schistosoma haematobium
Urine
Question ID | Description | Answers |
---|---|---|
Q00M0052 | Specimen Source |
Supplies: Urine Tubes, 10 mL (T068)
Collection Container/Tube: Clean, plastic urine collection container
Submission Container/Tube: Plastic, 10-mL urine tube
Specimen Volume: 10 mL
Collection Instructions:
1. Collect a random urine specimen. Preferred time of collection between the hours of 12 noon and 3 p.m. but not required. A 24-hour urine collection is also acceptable.
2. No preservative.
5 mL
Preserved urine | Reject |
Specimen Type | Temperature | Time | Special Container |
---|---|---|---|
Urine | Refrigerated | 7 days |
Aiding in the diagnosis of schistosomiasis infections involving the urinary tract
Schistosomiasis is an infection caused by several species of trematodes (flukes) in the genus Schistosoma. The adult worms of Schistosoma haematobium inhabit the venus plexus of the bladder and produce eggs that are typically passed in the urine. Peak egg excretion occurs between noon and 3 p.m. Identification of characteristic eggs in urine is diagnostic for infection with this organism.
Negative
If positive, organism identified
A positive result indicates the presence of Schistosoma species ova in urine.
A negative result does not rule out the presence of Schistosoma species since ova may be present at levels below the detection limits of this assay, or infection may not involve the urinary tract.
No significant cautionary statements
1. Ash L, Orihel T: Atlas of Human Parasitology. 5th ed. American Society of Clinical Pathologists (ASCP) Press; 2007
2. Global Health, Division of Parasitic Diseases: Parasites- Schistosomiasis. Centers for Disease Control and Prevention. Reviewed Apri 11, 2018. Accessed August 28, 2023. Available at: www.cdc.gov/parasites/schistosomiasis/index.html
3. World Health Organization (WHO): Schistosomiasis (Bilharzia). WHO. Accessed August 28, 2023. Available at: www.who.int/health-topics/schistosomiasis#tab=tab_1
Filter concentration of urine has been shown to increase recovery of Schistosoma haematobium eggs from urine. Ten milliliters of urine is passed through a membrane filter and the filter is examined under the microscope for the characteristic eggs.(Garcia L: Diagnostic Medical Parasitology. 6th ed. ASM Press, 2016)
Monday through Saturday
This test has been cleared, approved, or is exempt by the US Food and Drug Administration and is used per manufacturer's instructions. Performance characteristics were verified by Mayo Clinic in a manner consistent with CLIA requirements.
87210
87015
Test Id | Test Order Name | Order LOINC Value |
---|---|---|
SHUR | Schistosoma Exam, U | 10715-1 |
Result Id | Test Result Name |
Result LOINC Value
Applies only to results expressed in units of measure originally reported by the performing laboratory. These values do not apply to results that are converted to other units of measure.
|
---|---|---|
SHUR | Schistosoma Exam, U | 10715-1 |