Item Value
Test name Ova and Parasite Exam
Available Stat? No
Turn around times 1-3 days
In House Availability Monday-Friday, day shift
Performed by Microbiology
Patient Preparation Patient should be off ALL antibiotics for ≥ 2 weeks before for an O&P examination to be valid.
Normal range No parasites seen
Container type Hepatic abscess aspirates: Sterile container

All other samples: SAF vial

SAF vials and instructions available from Material Services (PMM # 44366 Vials SAF Sterile Child Resistant Cap 574-05-CRC-WB).

Outpatients can obtain these from the laboratories' draw stations.
Amount to Collect See preferred volume
Collection Instructions Collect 3 stool samples (one every 48 hours preferred, one per day is acceptable) to improve the chance of a positive result.

Aspirates submitted in a sterile container or leuken trap should be received in laboratory within 30 minutes of collection.
Sample type Stool; Duodenal/Colonic/Stool aspirates; Hepatic abscess aspirates

If you have additional questions regarding this test, please call: 415-353-1667