Pharmaceutical care in medical progressive care patients.

Abstract

To develop, implement, and assess the outcomes of a system for providing pharmaceutical care to medical progressive care patients. A system for providing pharmaceutical care was developed and implemented for an 8-week period beginning in June 1995. Both patient care outcomes and drug therapy cost change from the intervention period were compared with those of an 8-week baseline period. Variables compared included unit length of stay, hospital length of stay, transfers to the intensive care unit, readmissions, and adverse drug reactions requiring treatment. Differences between periods for these variables were assessed by using chi 2 tests and t-tests with alpha set at p less than 0.05. The clinical significance of the interventions were assessed independently by four physicians: two intensivists and two internists. The total drug therapy cost change from the intervention period was calculated as follows: total cost avoidance from individual recommendations subtracted from the total cost incurred from individual recommendations. The pharmacist evaluated 152 patients during the intervention period. A total of 235 pharmacotherapy recommendations were made on 103 patients, of whom 86.4% were accepted. Significantly fewer adverse drug reactions (ADRs) received treatment during the intervention period (p = 0.027). The mean unit length of stay was lower during the intervention period (4.8 +/- 3.7 d) than during the baseline period (6.0 +/- 5.6 d); however, this difference was not significant (p = 0.053). Individual physician assessment of the pharmacists' recommendations revealed that 75.8% were considered somewhat significant, significant, or very significant. The total drug therapy cost change from the intervention period was -$6534.53. The projected annual drug therapy cost reduction from this study is $42,474.45. The provision of pharmaceutical care to medical progressive care patients was associated with a substantial decrease in drug therapy cost and a decrease in the number of ADRs that required treatment.