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Evaluation of unnecessary test requests based on free prostate- specific antigen testing
Abstract
Objective: As the demand for healthcare services increases, so does the frequency of laboratory test requests, leading to a rise in unnecessary testing. In this study, we aimed to evaluate the extent of unnecessary free prostate- specific antigen (fPSA) testing by analyzing prostate-specific antigen (PSA) and fPSA test requests at our hospital.
Methods: We retrospectively reviewed PSA and fPSA test requests recorded in the hospital information system at Çanakkale Onsekiz Mart University Hospital between January 1, 2021, and December 31, 2023. Requests for fPSA were classified as unnecessary when PSA levels were either <4 ng/mL or >10 ng/mL, when fPSA was ordered alone without a PSA test, or when fPSA was ordered together with PSA at the initial request when PSA levels were between 4 and 10 ng/mL. Additionally, according to the Rational Laboratory Use Test Request Procedure, PSA tests ordered at intervals shorter than 28 days were also considered unnecessary. The distribution of test requests was analyzed by clinical department.
Results: Of the 2,728 fPSA tests, 2,522 (92.4%) were deemed unnecessary. Specifically, 2,306 (92%) of 2,507 requests from outpatient clinics and 216 (97.3%) of 221 requests from inpatient services were unnecessary. According to the Rational Test Request Procedure, 11.3% of PSA test requests were considered unnecessary.
Conclusion: Unnecessary laboratory test orders contribute to increased healthcare costs and may lead to more invasive procedures due to false-positive results. Collaboration with clinicians and the elimination of unit-specific test request forms may help reduce unnecessary test utilization.
Keywords
Supporting Institution
No financial support was received for this study.
Ethical Statement
Ethical approval for this retrospectively designed study was obtained from the Ethics Committee of the Graduate School of Çanakkale Onsekiz Mart University Rectorate (date: 09.05.2024, decision no: 07/08).
Thanks
None.
References
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Details
Primary Language
English
Subjects
Clinical Chemistry
Journal Section
Research Article
Publication Date
September 30, 2025
Submission Date
June 13, 2025
Acceptance Date
September 18, 2025
Published in Issue
Year 2025 Volume: 6 Number: 3
APA
Şahin, E., & Çinpolat, H. Y. (2025). Evaluation of unnecessary test requests based on free prostate- specific antigen testing. Troia Medical Journal, 6(3), 70-74. https://doi.org/10.55665/troiamedj.1718719
AMA
1.Şahin E, Çinpolat HY. Evaluation of unnecessary test requests based on free prostate- specific antigen testing. Troia Med J. 2025;6(3):70-74. doi:10.55665/troiamedj.1718719
Chicago
Şahin, Eda, and Havva Yasemin Çinpolat. 2025. “Evaluation of Unnecessary Test Requests Based on Free Prostate- Specific Antigen Testing”. Troia Medical Journal 6 (3): 70-74. https://doi.org/10.55665/troiamedj.1718719.
EndNote
Şahin E, Çinpolat HY (September 1, 2025) Evaluation of unnecessary test requests based on free prostate- specific antigen testing. Troia Medical Journal 6 3 70–74.
IEEE
[1]E. Şahin and H. Y. Çinpolat, “Evaluation of unnecessary test requests based on free prostate- specific antigen testing”, Troia Med J, vol. 6, no. 3, pp. 70–74, Sept. 2025, doi: 10.55665/troiamedj.1718719.
ISNAD
Şahin, Eda - Çinpolat, Havva Yasemin. “Evaluation of Unnecessary Test Requests Based on Free Prostate- Specific Antigen Testing”. Troia Medical Journal 6/3 (September 1, 2025): 70-74. https://doi.org/10.55665/troiamedj.1718719.
JAMA
1.Şahin E, Çinpolat HY. Evaluation of unnecessary test requests based on free prostate- specific antigen testing. Troia Med J. 2025;6:70–74.
MLA
Şahin, Eda, and Havva Yasemin Çinpolat. “Evaluation of Unnecessary Test Requests Based on Free Prostate- Specific Antigen Testing”. Troia Medical Journal, vol. 6, no. 3, Sept. 2025, pp. 70-74, doi:10.55665/troiamedj.1718719.
Vancouver
1.Eda Şahin, Havva Yasemin Çinpolat. Evaluation of unnecessary test requests based on free prostate- specific antigen testing. Troia Med J. 2025 Sep. 1;6(3):70-4. doi:10.55665/troiamedj.1718719
