Which statement best describes the relationship between calibration and quality control?

Prepare for the Medical Laboratory Science Module 1 Exam. Test your knowledge with flashcards and multiple-choice questions, complete with hints and explanations. Get confident for your test!

Multiple Choice

Which statement best describes the relationship between calibration and quality control?

Calibration establishes the instrument’s response to known standards, setting the baseline accuracy by comparing measurements to reference values. Quality control then uses control materials with established values to monitor the instrument over time, ensuring it continues to perform correctly during routine measurements and catching drift or bias. So the best statement reflects both roles: calibration fixes the known relation to standards, while quality control verifies ongoing performance. The other ideas don’t fit: calibration isn’t about ongoing performance, it doesn’t use random patient samples, and quality control isn’t limited to a period after calibration.

Calibration establishes the instrument’s response to known standards, setting the baseline accuracy by comparing measurements to reference values. Quality control then uses control materials with established values to monitor the instrument over time, ensuring it continues to perform correctly during routine measurements and catching drift or bias.

So the best statement reflects both roles: calibration fixes the known relation to standards, while quality control verifies ongoing performance. The other ideas don’t fit: calibration isn’t about ongoing performance, it doesn’t use random patient samples, and quality control isn’t limited to a period after calibration.

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