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Ova and Parasites Special Stains *




87177; 87209 


O & P Send-off; Ova and Parasite, Comprehensive

Specimen Type

Stool or sputum


O&P transport containers with formalin and PVA (ParaPak pink and gray top)

Collection Instructions

Collect stool or sputum in plastic container.  If sputum is suspected for paragonimiasis or echinococcosis, submit in 10 % formalin. 


Volume: 5 ml stool; 3-4 ml sputum
Min. volume: 3 ml. 

Additional Information

Must be in transport. Call  laboratory for questions. This test establishes the diagnosis of a parasitic infection

Patient Preparation

Refrain from Metamucil®, castor oil, mineral oil, tetracycline, or antiamebic drugs within one week prior to test.

Specimen Processing Instructions

 Once in the lab,place specimens in O&P transport containers.

Transport Requirements

Room temperature

Specimen Stability

2 months in transport 

Rejection Criteria

Specimens sent on diaper, in tissue paper , grossly leaking specimens, specimens containing interfering substances (castor oil, bismuth, Metamucil®, barium,) specimens contaminated with urine, expired transport device, specimen not received in O&P preservative transport container.

Reference Range

Reference range accompanies report

Critical Value


Test Includes

Concentration of material and examination of specimen for ova and parasites by conventional iodine/saline and trichrome staining. This test will not detect Cryptosporidium, Cyclospora cayetanensis or Microsporidium 


Formalin concentrate and trichrome stain 

Testing Frequency




Reviewed By

Lisa McBride

Reviewed Date



* Denotes Reference Lab Test

Reviewed by Lisa McBride on February 19, 2018

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