What is the Analytical measurement range?

The Analytical Measurement Range (AMR) refers to the range of concentrations or values over which an analytical method or instrument can provide reliable and accurate results. It is a critical parameter in medical laboratories as it defines the lower and upper limits within which the test results are considered valid and trustworthy

For example, let’s consider a common medical laboratory test like glucose measurement in blood. The AMR for this test might be defined as follows :

Lower Limit: 20 mg/dL Upper Limit: 600 mg/dl

This means that the analytical method or instrument used in the laboratory can accurately and reliably measure glucose concentrations within the range of 20 mg/dL to 600 mg/dL. If a sample falls below 20 mg/dL or above 600 mg/dL, the results may not be accurate, and the sample may need to be diluted or retested using a more appropriate method or instrument.

It’s important for medical laboratories to regularly verify and validate the AMR of their analytical methods to ensure the reliability and accuracy of their test results. The AMR can vary depending on the test and the specific instrument or method used, and it is essential to follow the manufacturer’s recommendations and guidelines for each instrument and test.

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About the author

Dr. Sambhu Chakraborty is a distinguished consultant in quality accreditation for laboratories and hospitals. With a leadership portfolio that includes directorial roles in two laboratory organizations and a consulting firm, as well as chairmanship in a prominent laboratory organization, Dr. Chakraborty is a respected voice in the field. For further engagement or inquiries, Dr. Chakraborty can be contacted through email at director@iaqmconsultants.com and info@sambhuchakraborty.com. Additional resourcesand contact information are available on his websites, https://www.quality-pathshala.com and https://www.sambhuchakraborty.com, or via WhatsApp at +919830051583