Thus, in this study a positive aspirate is more helpful than a negative aspirate.

The accuracy of the aspirate is improved by using the Gastroccult test.

In the absence of these findings, consider a nasogastric aspirate to determine the source of bleeding.

The nasogastric aspirate can help determine the location of bleeding and thus direct initial diagnostic and treatment plans.

And the way we do this is we basically place this through the soft tissue, and kind of punch it into the hard bone, into the tuchus that's a technical term and aspirate about 10 mls of bone marrow out, each time, with a syringe.