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22353 Organism ID, Parasite/Medical Arthropod

Organism ID, Parasite/Medical Arthropod
Test Code: IDENP
Synonyms/Keywords
​Organism ID, Parasite, Arthropod, Worm, Tick ID, Scabies
Specimen Requirements
Specimen Type Preferred Container/Tube Acceptable Container/Tube Specimen Volume Specimen Minimum Volume
(allows for 1 repeat)
Pediatric Minimum Volume
(no repeat)
Arthropods​ 70-95% alcohol 10% formalin
Worms, worm segments​

10% formalin

Maggots​
Sealed container w/o preservatives or gauze moistened with water if <24hr
Head/Body lice​ Pinworm paddle​
​Skin Scrapings ​Scabies Colleciton Kit
Collection Processing Instructions
Parasite may be submitted in a screw cap sealed container w/o preservative, although not recommended.
 
Patients may find organisms suspicious of parasites in their feces, on their body, or from within the house (mainly bedding, furniture, etc). Parasites and arthropods (insects, ticks, mites, lice) of human importance will be fully identified. Clinically unimportant parasites will be identified as fully as possible. 
 
Consult the Microbiology laboratory (800-222-5835 ext 16141) before submitting arthropods not primarily of medical significance (spiders, beetles, flies). 
 
Collection Instructions for Skin Scrapings for Scabies mites using Scabies Collection Kit (available from Customer Service or Microbiology Section):
Provider must have: Sterile scalpel, Container of mineral oil, Scotch tape
1.  Remove glass slides from the slide transport tube.
2.  Label frosted end of specimen slide and slide transport with patient name, medical record number, and date.
3.  Place a drop of mineral oil on a sterile scalpel blade.
4.  Allow some of the oil to flow onto the skin papule.  Scrape vigorously six or seven times to removed the top of 
     the papule. (Tiny flecks of blood should be seen in the oil.)
5.  Transfer the oil and scrapings onto the frosted glass slide.
6.  Add 1-2 extra drops of mineral oil to the slide and mix well.
7.  Clumps can be crushed to expose hidden mites.
8.  Place the plain glass slide onto the frosted specimen slide.
9.  Secure the slides firmly together with tape around both ends.
10. Place the secured slides into the slide transport tube and place in the biohazard bag.
11. Transport to the Microbiology Lab at room temperature as soon as possible.
Failure to find mites, eggs, or fecal pellets upon microscopic exam does not rule out scabies.
Specimen Stability Information
Specimen Type Temperature Time
Parasite in preservative​ Room Temp​ Indefinite​
Parasite w/o preservative​ Room Temp​ 24 hr​
Rejection Criteria
Parasites w/o preservative: > 24 hr post discovery (if too dehydrated to identify)
​Skin scrapings in formalin or alcohol

​Slides not submitted in a leak-proof container

​Broken slides
Performing Laboratory Information
Performing Location Day(s) Test Performed Analytical Time Methodology/Instrumentation
​Marshfield Monday through Friday​ 1 day​ Direct Observation/Microscopic Exam​
Reference Range Information
Performing Location Reference Range
All Performing Sites Interpretive report​
Outreach CPTs
CPT Modifier
(if needed)
Quantity Description Comments
87169​ Macro exam, parasite​
87168​ Macro exam, arthropod​
Synonyms/Keywords
​Organism ID, Parasite, Arthropod, Worm, Tick ID, Scabies
Ordering Applications
Ordering Application Description
​Centricity

​a. Cult. Parasite/Insect ID

b. Parasite/Insect ID

​Cerner None​
If the ordering application you are looking for is not listed, contact your local laboratory for assistance.
Specimen Requirements
Specimen Type Preferred Container/Tube Acceptable Container/Tube Specimen Volume Specimen Minimum Volume
(allows for 1 repeat)
Pediatric Minimum Volume
(no repeat)
Arthropods​ 70-95% alcohol 10% formalin
Worms, worm segments​

10% formalin

Maggots​
Sealed container w/o preservatives or gauze moistened with water if <24hr
Head/Body lice​ Pinworm paddle​
​Skin Scrapings ​Scabies Colleciton Kit
Collection Processing
Parasite may be submitted in a screw cap sealed container w/o preservative, although not recommended.
 
Patients may find organisms suspicious of parasites in their feces, on their body, or from within the house (mainly bedding, furniture, etc). Parasites and arthropods (insects, ticks, mites, lice) of human importance will be fully identified. Clinically unimportant parasites will be identified as fully as possible. 
 
Consult the Microbiology laboratory (800-222-5835 ext 16141) before submitting arthropods not primarily of medical significance (spiders, beetles, flies). 
 
Collection Instructions for Skin Scrapings for Scabies mites using Scabies Collection Kit (available from Customer Service or Microbiology Section):
Provider must have: Sterile scalpel, Container of mineral oil, Scotch tape
1.  Remove glass slides from the slide transport tube.
2.  Label frosted end of specimen slide and slide transport with patient name, medical record number, and date.
3.  Place a drop of mineral oil on a sterile scalpel blade.
4.  Allow some of the oil to flow onto the skin papule.  Scrape vigorously six or seven times to removed the top of 
     the papule. (Tiny flecks of blood should be seen in the oil.)
5.  Transfer the oil and scrapings onto the frosted glass slide.
6.  Add 1-2 extra drops of mineral oil to the slide and mix well.
7.  Clumps can be crushed to expose hidden mites.
8.  Place the plain glass slide onto the frosted specimen slide.
9.  Secure the slides firmly together with tape around both ends.
10. Place the secured slides into the slide transport tube and place in the biohazard bag.
11. Transport to the Microbiology Lab at room temperature as soon as possible.
Failure to find mites, eggs, or fecal pellets upon microscopic exam does not rule out scabies.
Specimen Stability Information
Specimen Type Temperature Time
Parasite in preservative​ Room Temp​ Indefinite​
Parasite w/o preservative​ Room Temp​ 24 hr​
Rejection Criteria
Parasites w/o preservative: > 24 hr post discovery (if too dehydrated to identify)
​Skin scrapings in formalin or alcohol

​Slides not submitted in a leak-proof container

​Broken slides
Reference Range Information
Performing Location Reference Range
All Performing Sites Interpretive report​
For more information visit:
Performing Laboratory Information
Performing Location Day(s) Test Performed Analytical Time Methodology/Instrumentation
​Marshfield Monday through Friday​ 1 day​ Direct Observation/Microscopic Exam​
For billing questions, see Contacts
Outreach CPTs
CPT Modifier
(if needed)
Quantity Description Comments
87169​ Macro exam, parasite​
87168​ Macro exam, arthropod​
For most current information refer to the Marshfield Laboratory online reference manual.