Specimens analyzed to determine the efficacy of treatment should be collected three to four weeks after completion of therapy. Antibiotics may affect results of exam.
Collect
Stool. Recommended collection: 3 separate stool specimens within a 5-7-day period (an individual order must be submitted for each specimen).
Specimen Preparation
Transfer 2 g of stool within one hour of collection into AlcorFix (ARUP Supply #52059) available online through eSupply using ARUP Connect™ or contact ARUP Client Services at 800-522-2787. (Min: 1 g) Also acceptable: Transfer 5 g of stool within one hour of collection into both 10 percent formalin and modified PVA (10 g total). (Min: 10 g total) Additional specimen collection instructions can be found at https://www.aruplab.com/parasep
Unacceptable Conditions
Rectal swabs, unpreserved, SAF (sodium acetate formalin), and any PVA fixative containing mercury such as LV-PVA (low viscosity PVA). Multiple specimens collected within a 24 hour period. Specimens containing barium, bismuth, or urine.
For ova and parasite exams from nonstool sources, refer to Ova and Parasite Exam, Body Fluid or Urine (ARUP test code 3001663). For Cryptosporidium, Cyclospora, and Cystoisospora stains, refer to Parasitology Stain by Modified Acid-Fast (ARUP test code 0060046). For macroscopic parasite identification (worms or proglottids), refer to Parasite Examination, Macroscopic (ARUP test code 2007361). For additional test information refer to ARUP Consult, https://arupconsult.com/content/diarrhea
If parasite infection is suspected as cause of persistent diarrhea (>14 days), specific pathogen testing is recommended (refer to Gastrointestinal Parasite Panel by PCR (2011150); Giardia Antigen by EIA (0060048); Entamoeba histolytica Antigen, EIA (0058001); or Cryptosporidium Antigen by EIA (0060045)). Do not order for patients who develop diarrhea during a prolonged hospitalization.
Method for identification of ova and parasites includes wet mount and trichrome stain.
Due to the various shedding cycles of many parasites, three separate stool specimens collected over a 5-7-day period are recommended for ova and parasite examination. A single negative result does not rule out the possibility of a parasitic infection. The ova and parasite exam does not specifically detect Cryptosporidium, Cyclospora, Cystoisospora, and Microsporidia. For additional test information refer to ARUP Consult, https://arupconsult.com/content/diarrhea
CPT Codes
87177; 87209
LOINC
10704-5
43227-8
ARUP Test Code
3001662
Performing Lab
ARUP Laboratories
Test Build Information
OrderCode
OrderName
ResultCode
ResultName
RESULT LOINC
CPT
OPFEC
OVA AND PARASITE FECAL
OPFR
OVA AND PARA FECAL INTERP
10704-5
87177, 87209
Collection
Patient Preparation
Specimens analyzed to determine the efficacy of treatment should be collected three to four weeks after completion of therapy. Antibiotics may affect results of exam.
Collect
Stool. Recommended collection: 3 separate stool specimens within a 5-7-day period (an individual order must be submitted for each specimen).
Specimen Preparation
Transfer 2 g of stool within one hour of collection into AlcorFix (ARUP Supply #52059) available online through eSupply using ARUP Connect™ or contact ARUP Client Services at 800-522-2787. (Min: 1 g) Also acceptable: Transfer 5 g of stool within one hour of collection into both 10 percent formalin and modified PVA (10 g total). (Min: 10 g total) Additional specimen collection instructions can be found at https://www.aruplab.com/parasep
Unacceptable Conditions
Rectal swabs, unpreserved, SAF (sodium acetate formalin), and any PVA fixative containing mercury such as LV-PVA (low viscosity PVA). Multiple specimens collected within a 24 hour period. Specimens containing barium, bismuth, or urine.
For ova and parasite exams from nonstool sources, refer to Ova and Parasite Exam, Body Fluid or Urine (ARUP test code 3001663). For Cryptosporidium, Cyclospora, and Cystoisospora stains, refer to Parasitology Stain by Modified Acid-Fast (ARUP test code 0060046). For macroscopic parasite identification (worms or proglottids), refer to Parasite Examination, Macroscopic (ARUP test code 2007361). For additional test information refer to ARUP Consult, https://arupconsult.com/content/diarrhea
If parasite infection is suspected as cause of persistent diarrhea (>14 days), specific pathogen testing is recommended (refer to Gastrointestinal Parasite Panel by PCR (2011150); Giardia Antigen by EIA (0060048); Entamoeba histolytica Antigen, EIA (0058001); or Cryptosporidium Antigen by EIA (0060045)). Do not order for patients who develop diarrhea during a prolonged hospitalization.
Method for identification of ova and parasites includes wet mount and trichrome stain.
Due to the various shedding cycles of many parasites, three separate stool specimens collected over a 5-7-day period are recommended for ova and parasite examination. A single negative result does not rule out the possibility of a parasitic infection. The ova and parasite exam does not specifically detect Cryptosporidium, Cyclospora, Cystoisospora, and Microsporidia. For additional test information refer to ARUP Consult, https://arupconsult.com/content/diarrhea
Laboratories.