Mohana Ravindranath is a freelance health, science, and tech journalist and a 2025 Association for Health Care Journalists fellow. She was previously a Bay Area health tech correspondent for STAT.

When you bring a measurement instrument to a calibration lab, you assume that your instrument will come back within expected tolerances. But, how do you know? That's where laboratory proficiency tests ...

Many different lab tests are used to find changes in your body that can happen with lupus. The results of each test help your doctor get a fuller picture of your health. Because lab tests alone can’t ...

Medical laboratory scientists collect samples and perform lab tests, calibrate and maintain equipment, and perform statistical analysis. Their work is crucial for clinicians to diagnose diseases.