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Checking of unit dose cassettes by pharmacy technicians at three Minnesota hospitals.

A pilot project in which pharmacy technicians were trained to check unit dose cassettes filled by other technicians is described. With the approval of the state board of pharmacy, the Minnesota Society of Hospital Pharmacists (MSHP) conducted the nine-month project in three hospitals with different types of unit dose drug distribution systems. Twenty-seven technicians underwent didactic and practical training and were then validated as checkers if they scored 99.8% accuracy in checking carts into which errors had been deliberately introduced by the pharmacist auditor. The performance of validated technicians was audited monthly, and failed audits had to be repeated. Participating technicians did not check the preparation of first doses or extemporaneously prepared doses. In 100,000 doses audited, 60 errors by the validated checkers were identified. Of six technicians who failed a monthly audit, five passed a repeat audit. Pharmacists at the participating hospitals documented time they spent on clinical activities that would have been spent checking cassettes. In December 1990 a one-year extension of the project, expanded to 10 hospitals, began. With strict quality control measures, specially selected and trained pharmacy technicians performed unit dose cassette checking with an accuracy of at least 99.94%.