Ova and Parasite

Ova and Parasite

Test Name:  

Ova and Parasite

Alternate Name (s):  

O and P

Laboratory Module:  

Microbiology

Ordering Mnemonic:  

OP

Specimen Type:   

Stool

Collection Container:  

SAF media transport

OP.jpg

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Collection Information:  

Avoid the use of mineral oil, bismuth, Milk of Magnesia, antacids, compounds containing Kaolin or barium prior to collection. Avoid contamination with urine or water.

Have patient pass stool onto a clean, dry bedpan. Transfer a portion of stool containing mucous, blood or pus to the SAF transport media. Do NOT use toilet paper to transfer stool.

Select areas of stool that appear blood-stained, purulent or watery. Transfer this to parasite transport media (labeled SAF FIXATIVE). Thoroughly mix 5 mL of stool with the 20 mL of fixative (1:4 ratio).
 

Test Schedule:  

Daily

Turnaround Time:  

Routine

Preliminary: 1 to 8 weeks

Final: 1 to 8 weeks

Stat / Urgent

Preliminary: 1 to 8 weeks

Final: 1 to 8 weeks

Reference Interval:  

 

Critical Values:  

As any ova or parasites are detected and identified the information is made available to the health care provider.

Lab Process Notes :  

 

Storage & Transport:  

Specimen should be refrigerated until it can be transported to the lab. Once in the lab it will be refrigerated until processed.

Test Referred to :   

Public Health Laboratories, Hamilton

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