Published: 8 Dec 2024

Reference Ranges in Lab Tests and Online Diagnosis

Definition

Reference ranges (also known as normal ranges) represent typical values for laboratory tests in a healthy population.
These ranges vary based on factors such as age, gender, geography, ethnicity, and test methodology.

Importance

* Establish a baseline for health
* Assess disease or risk factors
* Guide personalized diagnosis through online platforms
* Indicate the need for further testing

Use in Online Diagnosis

Online diagnostic platforms rely on reference ranges to:

* Interpret results and detect abnormalities
* Offer differential diagnoses based on deviations
* Provide contextual analysis considering additional information
* Trigger alerts for significant deviations

Challenges and Limitations

* Individual variability
* Test-specific factors
* Limitations of online tools
* Potential for misleading diagnoses

Example Reference Ranges

| Test | Normal Range |
|---|---|
| Blood Glucose (fasting) | 70-100 mg/dL |
| White Blood Cell Count | 4,000-11,000 cells/μL |
| Total Cholesterol | Below 200 mg/dL |

Conclusion

Reference ranges are crucial for interpreting lab test results, including those from online diagnostic tools. However, it's essential to consider individual health factors and seek professional medical advice for comprehensive diagnosis.