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Test Code OP Direct Ova + Parasite Direct Exam - Wet Mount

Biohazard Infectious

Clinical System Name

Ova + Parasite Direct Exam - Wet Mount

Synonyms

Tick

Scabies

Worm

Arthropod

Shistosoma haematobium

Description

Samples are examined directly (macroscopically) for presence and identification of larger parasites such as worms, ticks, scabies, and other arthropods.

 

Wet Mount is performed for Shistosoma haematobium from urine. 

 

For microscopic Ova and Parasite exam on stool samples see Stool Helminth Worm Parasite.

Sample Requirements

Specimen:

Urine for S. haematobium should be collected midday (noon to 3 pm) for peak shedding of eggs. Submit at least 10 ml of urine.

Macroscopic parasites (worms, ticks, etc) should be kept moist with a few drops of saline.

 

Container: Sterile Container

 

Preferred Vol: N/A

 

Minimum Vol: N/A

Processing Instructions

CPA: Send sample to Microbiology for processing. 

 

Off-site collection:  Off-site Children's Lab locations should send sample to SCH Main Campus for testing. Sample should be kept at room temperature prior to and during courier transport. 

 

Other off-site locations, keep sample at room temperature prior to and during transport. 

Stability

Temp Time
Room temp 1 hour
Refrigerated N
Frozen N

 

If the sample is a worm or other parasite and only macroscopic examination is required, sample is stable up to 24 hours from collection. 

 

Availability

Procedure Performed Turn Around Time (TAT)
Direct OP Exam 24/7 24 hours

 

Performing Laboratory

Seattle Children's Laboratory

 

Department

Microbiology Laboratory

CPT Codes

87169

 

This test is not limited to the CPT codes listed.  Others may be added as more testing is necessary and depending on the pathogens isolated.

Reporting Information

Final Report: 24 hours

 

Notifiable Result

See Link below for Notifiable Conditions for WA state labs:

http://www.doh.wa.gov/PublicHealthandHealthcareProviders/NotifiableConditions.aspx

 

See Link below for PDF of phone numbers for Local Health jurisdictions (by County) in WA State:

http://www.doh.wa.gov/Portals/1/Documents/1200/phsd-LHJ.pdf