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Results for “Laboratory Procedures”

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At least 217 records · Page 12Linked to original sources
PubMed1983

The Baermann technique for estimating Protostrongylus infection in bighorn sheep: effect of laboratory procedures.

The modified Baermann funnel technique was evaluated to determine the effects of time of baermannization, fecal preparation, type and size of funnel, and type of filter on the number of first stage larvae of Protostrongylus spp. recovered from feces of Rocky Mountain bighorn sheep (Ovis canadensis). More larvae were recovered when fecal pellets were baermannized for 24 hr compared to 8 hr, and when feces were crushed than when left intact. Use of small funnels resulted in the recovery of more larvae per gram of feces than larger funnels, and glass funnels more than plastic ones. There was no difference in recovery of larvae between cheesecloth filters and cellulose filters.

Animals↗
PubMed1976

Evaluation of a new system ("Corvac") for separating serum from blood for routine laboratory procedures.

We evaluated the suitability of a new system ("Corvac," Corning) for rapid, complete separation of cell-free serum from whole blood. Twenty-one different clinical chemical procedures were performed on about 1150 paired blood samples, several by more than one method, to afford a more comprehensive evaluation. The tube of clotted blood collected in the conventional manner ("Vacutainer") underwent a double centrifugation and served as the control sample, while its paired specimen collected in the new system was processed by a single centrifugation. We evaluated significant differences between the means of the paired samples, the standard deviations of the differences between the means, and the bias of the means for the values of each constituent for each collection method. For several tests we observed differences that were statistically but not clinically significant. Only in the case of lactate dehydrogenase were large differences consistently demonstrated.

Alkaline Phosphatase↗