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What People Know vs. What They Should Know About Laboratory Reference Ranges
Dana Bailey1, Leah MacDonald2, Helen Monkman2
1Sinai Health, Toronto, Canada.
Studies in Health Technology and Informatics
|August 23, 2024
Summary
Health consumers often misunderstand laboratory reference ranges, confusing them with normal ranges and unaware of limitations. Patient education on interpreting these ranges is crucial for understanding test results.
Area of Science:
- Clinical Chemistry
- Health Literacy
- Patient Education
Background:
- Laboratory test results are increasingly accessible to consumers.
- Reference ranges accompany most test results to aid interpretation.
Purpose of the Study:
- To assess health consumers' understanding of the term "reference range."
- To identify common misconceptions regarding reference ranges.
Main Methods:
- Surveyed 25 non-healthcare providers on their interpretation of "reference range."
- Analyzed descriptions for recurring themes and understanding levels.
Main Results:
- Consumers showed uncertainty about the meaning of reference ranges.
- Many equated reference ranges with "normal" ranges.
- Limited awareness existed regarding reference range limitations and distinctions from clinical cutoffs.
Conclusions:
- Enhanced patient education is needed on the utility and limitations of laboratory reference ranges.
- Laboratories should provide additional context for test results to improve consumer comprehension of clinical significance.
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