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Emergency Radiology

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01-02-2021 | Care | Original Article

Is point of care renal function testing reliable screening pre-IV contrast administration?

Authors: Namit Mathur, Zhong X. Lu, Lisa MacKay, Theodore Lau, Ahilan Kuganesan, Kenneth K. Lau

Published in: Emergency Radiology | Issue 1/2021

Abstract

Purpose

Intravenous iodinated contrast is a commonly used diagnostic aid to improve image quality on computed tomography. There exists a small risk of post-contrast acute kidney injury in patients receiving IV contrast. One of the biggest risk factors for developing PC-AKI is the presence of pre-existing renal dysfunction, making it important to measure the renal function prior to contrast administration. Point of care (POC) devices offer a quick estimation of renal function, potentially improving workflows in radiology departments.

Method

Two POC devices were evaluated, the Nova StatSensor and Abbott iSTAT. Patients undergoing routine radiological investigations had blood collected and analysed by a POC method and the laboratory method (Beckman AU5800). The two values were analysed and compared. Renal function was calculated using eGFR via the CKD-EPI result. eGFR values were stratified as high risk (eGFR < 30), moderate risk (eGFR 30–59) and low risk (eGFR ≥ 60).

Results

One hundred eighty-six patients were included in the study. One hundred one patients underwent the Abbott iSTAT analysis, 139 patients underwent Nova StatSensor analysis, and 53 had both. Statistical analysis revealed that the StatSensor R² value was 0.77, and coefficient variation was 10.65%. iSTAT had a R² value of 0.83 and coefficient variation of 7.36%. The POC devices did not miss any high-risk patients but underreported eGFR values in certain patients.

Conclusion

POC devices are moderately accurate at detecting renal impairment in patients undergoing radiological investigations. They seem to be a good screening tool; however, any low eGFR values should be further examined.

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Title: Is point of care renal function testing reliable screening pre-IV contrast administration?
Authors: Namit Mathur
Zhong X. Lu
Lisa MacKay
Theodore Lau
Ahilan Kuganesan
Kenneth K. Lau
Publication date: 01-02-2021
Publisher: Springer International Publishing
Keyword: Care
Published in: Emergency Radiology / Issue 1/2021
Print ISSN: 1070-3004
Electronic ISSN: 1438-1435
DOI: https://doi.org/10.1007/s10140-020-01829-7

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Is point of care renal function testing reliable screening pre-IV contrast administration?

Abstract

Purpose

Method

Results

Conclusion

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Abstract

Purpose

Method

Results

Conclusion

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