Cocaine use in elder patients presenting to an inner-city emergency department.

Objectives: To determine the prevalence of cocaine use in a population of elder patients presenting to an inner-city academic emergency department (ED).

Methods: This was a prospective, blinded observational study of patients aged 60 years or older who presented to a large urban ED over a six-month period. A urine drug screen was performed on patients who had a sample obtained during treatment for routine analysis.

Performance of a DNA Probe-Based Salmonella Test in the AACC Check Sample Program.

The performance of the GENE-TRAK Salmonella assay in food as been evaluated with samples of flour or flour based bakery mix provided by the American Association of Cereal Chemists (AACC) check sample program. Six pairs of coded samples were tested from November 1986 through September 1987. The test correctly identified all six positive and six negative samples.