Test Code SSPARA Ova and Parasite Screen (O&P), LAB258 (Ova/Parasites, Stool)
Performing Laboratory
State Hygienic Laborartory, Coralville, IA
State Hygienic Laboratory | The University of Iowa
Test Method
Ethyl Acetate Concentration, Biological Stain, Microscopy
Performance
Monday-Friday
8am - 5pm
Average Turn Around Time: 2-4 business days
Specimen Requirement
Specimen Type: Stool (diarrheal)
Patient Preparation:
The patient should be instructed not to take any antacids, oily laxatives, or anti-diarrheal medications unless prescribed by the physician.
Collection Instructions:
Stool (diarrheal): Collect the specimen using a Stool Collection for Ova and Parasites Kit provided by the laboratory. The kit includes a specimen bag, an absorbent sheet, and one Total-Fix vial to preserve the stool specimen. Label vial with patient's name, unique identifier (e.g., date of birth), and date of collection. Preserve each stool specimen in parasitology transport vial (Total-Fix) within one hour of collection.
- Pass the stool into a clean, dry plastic disposable container or place a large plastic bag or kitchen wrap over the toilet seat to catch the specimen. DO NOT MIX URINE OR WATER WITH THE STOOL SPECIMEN.
- Semi-formed stool: Using the spork built into the lid, add stool to the vial until the liquid reaches the red fill line. Any blood or mucous should be included.
- Liquid stool: Pour the stool into the vial up to the red fill line.
- Tighten the vial cap completely. A leaking specimen may be unsuitable for testing. Clean the outside of the vial with rubbing alcohol or soap and water if they are soiled. Check to make sure the patient name and date of collection are still readable.
- Wash hands thoroughly. Avoid contact with the Total-Fix solution inside the vial. If contact occurs, flush the affected area with water. Contact a physician immediately if irritation develops.
Shipping and Specimen Stability
Shipping:
Specimens should be stored and shipped under the same conditions. Wrap specimen container in absorbent material and place in a biohazard bag. Seal the bag and place into the mailer along with a completed Test Request Form. Transport specimen at room temperature.
Temperature Stability: 15-35°C
Rejection Criteria
Specimens will be rejected if received under these conditions:
Formed stool, unpreserved stool, improperly collected specimens (e.g., rectal swabs), leaking specimen, multiple specimens within 24 hours, stool specimens containing barium, oil, water, or urine. Specimens not received in the correct temperature ranges stated under "Temperature and Stability" will be rejected.
Expected Results
Microscopic Examination of Concentrated Sample: No Ova or Parasites found, Parasite identification. Trichrome Stain Observation: No Ova or Parasites found, Parasite identification.
CPT Codes
87177
87209