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Test-ordering by multiple physicians increases unnecessary laboratory examinations.

P Valenstein¹, A Leiken, C Lehmann

¹Department of Pathology, State University of New York, Stony Brook.

Archives of Pathology & Laboratory Medicine

|March 1, 1988

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Multiple physicians ordering tests in teaching hospitals often leads to unnecessary duplication of diagnostic chemistry profiles. This study found a significant correlation between the number of physicians and duplicate lab tests ordered per patient.

Area of Science:

Clinical Pathology
Healthcare Management
Medical Economics

Background:

Teaching hospitals commonly involve multiple physicians caring for a single patient.
This fragmented care model can lead to repetitive diagnostic testing.

Purpose of the Study:

To investigate the link between multiple physician involvement and duplicate laboratory test ordering.
Specifically examining the unnecessary repetition of 20-test chemistry profiles.

Main Methods:

A multivariate regression model analyzed data from 198 consecutively admitted patients.
A case-control analysis compared duplicate versus non-duplicate chemistry profiles.

Main Results:

The number of duplicate chemistry profiles was significantly correlated with the number of ordering physicians.

Related Experiment Videos

Redundant tests were more likely ordered by new physicians compared to the original ordering physician.

Conclusions:

The prevalent practice of multiple physicians ordering tests in teaching hospitals contributes to unnecessary laboratory examinations.
This pattern highlights a systemic issue leading to potential healthcare waste and increased patient costs.