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Proc AMIA Symp. 2001:32-6.

A computer based intervention on the appropriate use of arterial blood gas.

Author information

  • 1Biomedical Informatics, Vanderbilt University Medical Center, Nashville, TN, USA.

Abstract

OBJECTIVE:

To evaluate impact of a computer-based intervention on arterial blood gas (ABG) usage in an intensive care setting.

DESIGN:

Retrospectively examined, via mixed group analysis, the effects of the intervention on ABG usage in the intensive care unit (ICU).

SUBJECTS:

Included all clinicians who placed ABG orders in an ICU using the computerized physician order-entry system, as well as controls in non-order entry units.

METHODS:

Computer-based intervention presenting ordering clinician with patient s previous ABG values and limiting forward duration of tests ordered. Study spanned 12 weeks, 5 weeks pre-intervention and 7-weeks post-intervention. Of 8 ICUs, intervention implemented in 6, not implemented in 2. Data analyzed using the repeated measure ANOVA.

RESULTS:

Physicians entered <40% ABG orders. 376 ABGs per week processed pre-intervention, 387 per week post. Results nonsignificant with a p= 0.09. Orders placed declined from 1039 per week, Jan 2000 to 662 per week, April 2001.

DISCUSSION:

Study did not demonstrate significant change; limited power. Need longer study periods. Impact improved in the future by targeting physician users and tailoring intervention to specific work flow pattern of high utilization units.

PMID:
11825152
[PubMed - indexed for MEDLINE]
PMCID:
PMC2243306
Free PMC Article
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