Test ID: PARID Parasite Identification, Varies
Reporting Name
Parasite IdentificationUseful For
Gross identification of parasites (eg, worms) and arthropods (eg, ticks, bed bugs, lice, mites)
Detecting or eliminating the suspicion of parasitic infection by identifying suspect material passed in stool or found on the body
Supporting the diagnosis of delusional parasitosis
Identifying ticks, including Ixodes species (the vector for Lyme disease)
Clinical Information
Infectious diseases are spread and caused by a variety of macroscopic vectors. A wide array of macroscopic parasites (worms and ectoparasites) and parasite mimics or artifacts may be submitted for examination and identification. It is important to promptly and accurately identify these specimens so that the ordering physician can appropriately treat and counsel the patient.
Interpretation
A descriptive report is provided identifying the worm or arthropod. Worms and hard ticks are identified to the species level when possible, while other parasitic arthropods are identified to the genus level.
Arthropods that do not cause human disease and parasite mimics resembling worms are reported as nonparasites or free living insects.
Report Available
1 to 4 daysDay(s) Performed
Monday through Friday
Clinical Reference
Mathison BA, Pritt BS: Laboratory Identification of Arthropod Ectoparasites. Clin Microbiol Rev 2014;27(1):48-67
Method Name
BUG: Arthropod and Artifact Identification
WORMY: Gross and Microscopic Examination
Specimen Type
VariesNecessary Information
2. Indicate reason for request.
Specimen Required
Specimen Type: Parasitic worms, insects, or mites
Container/Tube: Sterile container (10% formalin or 70% alcohol may be added if appropriate specimen type)
Specimen Volume: Entire specimen
Collection Instructions:
1. For scabies, submit skin scrapings on glass microscope slide. Cover with a clean slide and use a rubber band to hold the 2 slides together. Place the slides in a clean, dry container for transport.
2. Submit whole worms and worm segments in 70% alcohol or formalin.
3. Submit arthropods (ticks, lice, nits, bed bugs, etc) in a clean, dry container.
Specimen Minimum Volume
See Specimen Required.
Specimen Stability Information
Specimen Type | Temperature | Time | Special Container |
---|---|---|---|
Varies | Ambient (preferred) | ||
Refrigerated |
Reference Values
A descriptive report is provided.
Test Classification
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.CPT Code Information
87168-Arthropod (if appropriate)
87169-Parasite (if appropriate)
LOINC Code Information
Test ID | Test Order Name | Order LOINC Value |
---|---|---|
PARID | Parasite Identification | 20932-0 |
Result ID | Test Result Name | Result LOINC Value |
---|---|---|
PARID | Parasite Identification | 20932-0 |
Testing Algorithm
When this test is ordered, 1 of the 2 reflex tests above will be performed and charged based on whether the object is an arthropod or worm. For parasite artifacts and nonhuman parasites, the reflex test performed will be based on whether the object most closely resembles a worm (eg, mucus strands, food material, fibers) or an arthropod (eg, ticks, mites, free-living insects).
See Parasitic Investigation of Stool Specimens Algorithm in Special Instructions.
Reflex Tests
Test ID | Reporting Name | Available Separately | Always Performed |
---|---|---|---|
BUG | Arthropod Identification | No, (Bill Only) | No |
WORMY | Parasite Identification | No, (Bill Only) | No |
Special Instructions
Forms
If not ordering electronically, complete, print, and send a Gastroenterology and Hepatology Client Test Request (T728) with the specimen.
mml-tickborne, mml-travelerinfections, mml-giinfections