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 ...

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.

The first thing she noticed on her screening panel was the word “HIGH” in red text: the test had detected elevated antibodies ...