Test Catalog

Test Id : PARID

Order This Test

Parasite Identification, Varies

Download
Overview

Test Catalog

Useful For
Suggests clinical disorders or settings where the test may be helpful

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)

Reflex Tests
Lists tests that may or may not be performed, at an additional charge, depending on the result and interpretation of the initial tests.

Test Id Reporting Name Available Separately Always Performed
BUG Arthropod Identification No, (Bill Only) No
WORMY Parasite Identification No, (Bill Only) No

Testing Algorithm
Delineates situations when tests are added to the initial order. This includes reflex and additional tests.

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).

 

For more information see Parasitic Investigation of Stool Specimens Algorithm.

Method Name
A short description of the method used to perform the test

BUG: Arthropod and Artifact Identification

WORMY: Gross and Microscopic Examination

NY State Available
Indicates the status of NY State approval and if the test is orderable for NY State clients.

Yes

Reporting Name
Lists a shorter or abbreviated version of the Published Name for a test

Parasite Identification

Aliases
Lists additional common names for a test, as an aid in searching

Scabies

Bedbug

Louse

Mite

Tapeworm

Tick

Flea

Worm

Delusional parasitosis

Testing Algorithm
Delineates situations when tests are added to the initial order. This includes reflex and additional tests.

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).

 

For more information see Parasitic Investigation of Stool Specimens Algorithm.

Specimen Type
Describes the specimen type validated for testing

Varies

Necessary Information

ORDER QUESTIONS AND ANSWERS

Question ID Description Answers
Q00M0046 Specimen Source (Required) and Isolate Description-Morphology, tests performed. (Required)

Specimen Required
Defines the optimal specimen required to perform the test and the preferred volume to complete testing

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 (do not tape). Place the slides in a clean, dry container for transport. If no slides are available at time of collection, the dry skin scraping can be submitted in a sterile container and will be placed on slide at time of examination. Skin scraping must be visible with the naked eye to be of a quantity sufficient for testing.

2. Submit whole worms and worm segments in 70% alcohol or formalin. Worms must be clean of stool to be suitable for examination.

3. Submit arthropods (ticks, lice, nits, bed bugs, etc) in a clean, dry container. Do not wrap in tape, gauze, or tissue that might obscure them during examination.

Special Instructions
Library of PDFs including pertinent information and forms related to the test

Forms

If not ordering electronically, complete, print, and send a Gastroenterology and Hepatology Test Request (T728) with the specimen.

Specimen Minimum Volume
Defines the amount of sample necessary to provide a clinically relevant result as determined by the Testing Laboratory

See Specimen Required.

Reject Due To
Identifies specimen types and conditions that may cause the specimen to be rejected

All specimens will be evaluated at Mayo Clinic Laboratories for test suitability.

Specimen Stability Information
Provides a description of the temperatures required to transport a specimen to the performing laboratory, alternate acceptable temperatures are also included

Specimen Type Temperature Time Special Container
Varies Ambient (preferred)
Refrigerated

Useful For
Suggests clinical disorders or settings where the test may be helpful

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)

Testing Algorithm
Delineates situations when tests are added to the initial order. This includes reflex and additional tests.

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).

 

For more information see Parasitic Investigation of Stool Specimens Algorithm.

Clinical Information
Discusses physiology, pathophysiology, and general clinical aspects, as they relate to a laboratory test

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.

Reference Values
Describes reference intervals and additional information for interpretation of test results. May include intervals based on age and sex when appropriate. Intervals are Mayo-derived, unless otherwise designated. If an interpretive report is provided, the reference value field will state this.

A descriptive report is provided.

Interpretation
Provides information to assist in interpretation of the test results

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.

Cautions
Discusses conditions that may cause diagnostic confusion, including improper specimen collection and handling, inappropriate test selection, and interfering substances

This test identifies a tick's species, age, sex, and level of engorgement. It does not include analysis of ticks for the presence of Borrelia burgdorferi, the causative agent of Lyme disease. Testing ticks for potential pathogens such as B burgdorferi is not recommended since it does not indicate if the organism has been passed to the host during feeding. Instead, morphologic features of the submitted tick including the gender and degree of engorgement are more useful for predicting the risk of B burgdorferi transmission. Only female ticks transmit B burgdorferi, and they must be attached for 36 hours or more for transmission to occur. The latter is reflected by the degree of tick engorgement. Ticks that are not engorged with blood pose little risk for Lyme disease.

Clinical Reference
Recommendations for in-depth reading of a clinical nature

Mathison BA, Pritt BS. Laboratory Identification of Arthropod Ectoparasites. Clin Microbiol Rev. 2014;27(1):48-67

Method Description
Describes how the test is performed and provides a method-specific reference

The submitted organism or material is examined macroscopically and microscopically, as appropriate for the specimen. Organisms are identified to the species level when possible.(Mathison BA, Pritt BS. Laboratory Identification of Arthropod Ectoparasites. Clin Microbiol Rev. 2014;27[1]:48-67)

PDF Report
Indicates whether the report includes an additional document with charts, images or other enriched information

No

Day(s) Performed
Outlines the days the test is performed. This field reflects the day that the sample must be in the testing laboratory to begin the testing process and includes any specimen preparation and processing time before the test is performed. Some tests are listed as continuously performed, which means that assays are performed multiple times during the day.

Monday through Friday

Report Available
The interval of time (receipt of sample at Mayo Clinic Laboratories to results available) taking into account standard setup days and weekends. The first day is the time that it typically takes for a result to be available. The last day is the time it might take, accounting for any necessary repeated testing.

1 to 4 days

Specimen Retention Time
Outlines the length of time after testing that a specimen is kept in the laboratory before it is discarded

1 week

Performing Laboratory Location
Indicates the location of the laboratory that performs the test

Rochester

Fees
Several factors determine the fee charged to perform a test. Contact your U.S. or International Regional Manager for information about establishing a fee schedule or to learn more about resources to optimize test selection.

  • Authorized users can sign in to Test Prices for detailed fee information.
  • Clients without access to Test Prices can contact Customer Service 24 hours a day, seven days a week.
  • Prospective clients should contact their account representative. For assistance, contact Customer Service.

Test Classification
Provides information regarding the medical device classification for laboratory test kits and reagents. Tests may be classified as cleared or approved by the US Food and Drug Administration (FDA) and used per manufacturer instructions, or as products that do not undergo full FDA review and approval, and are then labeled as an Analyte Specific Reagent (ASR) product.

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
Provides guidance in determining the appropriate Current Procedural Terminology (CPT) code(s) information for each test or profile. The listed CPT codes reflect Mayo Clinic Laboratories interpretation of CPT coding requirements. It is the responsibility of each laboratory to determine correct CPT codes to use for billing.

CPT codes are provided by the performing laboratory.

87168-Arthropod (if appropriate)

87169-Parasite (if appropriate)

LOINC® Information
Provides guidance in determining the Logical Observation Identifiers Names and Codes (LOINC) values for the order and results codes of this test. LOINC values are provided by the performing laboratory.

Test Id Test Order Name Order LOINC Value
PARID Parasite Identification 20932-0
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.
PARID Parasite Identification 20932-0

Test Setup Resources

Setup Files
Test setup information contains test file definition details to support order and result interfacing between Mayo Clinic Laboratories and your Laboratory Information System.

Excel | PHP Pdf | CMS Pdf

Sample Reports
Normal and Abnormal sample reports are provided as references for report appearance.

Normal Reports | Abnormal Reports

SI Sample Reports
International System (SI) of Unit reports are provided for a limited number of tests. These reports are intended for international account use and are only available through MayoLINK accounts that have been defined to receive them.

SI Normal Reports | SI Abnormal Reports