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Testing a Claim about Standard Deviation

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Related Experiment Video

Updated: Dec 9, 2025

Testing for Metacognitive Responding Using an Odor-based Delayed Match-to-Sample Test in Rats

Testing for Metacognitive Responding Using an Odor-based Delayed Match-to-Sample Test in Rats

Published on: June 18, 2018

Minimum retesting intervals in practice: 10 years experience.

¹Department of Clinical Biochemistry, University Hospital of North Durham, North Road, Durham, County Durham, DH1 5TW, UK.

Clinical Chemistry and Laboratory Medicine

|September 6, 2020

Summary

This summary is machine-generated.

Minimum retesting intervals (MRI) help reduce unnecessary lab tests. Post-2011 recommendations saw a significant increase in identified inappropriate tests, leading to substantial cost savings and improved lab efficiency.

Keywords:

cost per test demand management harmonization inappropriate testing minimum retesting intervals

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Area of Science:

Clinical Biochemistry
Laboratory Medicine
Healthcare Management

Background:

Minimum retesting intervals (MRI) are a key strategy for managing demand and reducing over-utilized laboratory tests.
Evidence-based recommendations for MRI use were published by the Association of Clinical Biochemistry and Laboratory Medicine (ACB) in 2011.

Purpose of the Study:

To review the implementation and impact of MRI between 2011 and 2020.
To compare the findings with data from the period 2000-2010.

Main Methods:

A comprehensive literature search identified studies reporting MRI use in test management.
Studies were categorized into pre-recommendation (2000-2010) and post-recommendation (2011-2020) periods.

Main Results:

The proportion of tests failing MRI increased from 4.6% (2000-2010) to 11.8% (2011-2020).
In the 2011-2020 period, 14.3% of identified inappropriate tests were cancelled, saving 2.9 million Euros.
Haemoglobin A1c was the most frequently rejected test, and 13 of 27 studies utilized ACB recommendations.

Conclusions:

MRI is an established, safe, and sustainable tool for managing inappropriate laboratory testing.
Evidence-based recommendations have facilitated global adoption of MRI, harmonizing laboratory practices.