This article was reviewed by Felix Gussone, MD. Preparing properly for lab tests helps ensure your results are accurate and reliable. Some tests — like fasting cholesterol or fasting glucose — require ...

Quest Diagnostics may be the preferred lab your health insurance, doctors, or specialists use for blood work or other samples. We’re reviewing its sub-brand Quest Health, from which you can order your ...

If you’ve ever wondered why your doctor asks you to do a blood test or provide a urine sample at your annual checkup even if you’re feeling perfectly fine, that’s exactly the point. Lab test results ...

This story is sponsored by Intermountain LiveWell. If you've ever wondered why your doctor asks you to do a blood test or provide a urine sample at your annual checkup even if you're feeling perfectly ...

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.

You may feel perfectly fine at your annual checkup, but your doctor still orders lab tests. According to Dr. Sydney LeGuyader, an internal medicine physician at Intermountain Health, that is exactly ...

Inside one transparent plastic container on a rack of shelves is someone’s big toe. Inside another, someone else’s uterus. In the complex and bureaucratic health care system, this bright room and its ...

Biomarker lab tests typically take a biological sample, like blood, to evaluate certain biomarkers, which are measurable indicators of your health. Whether you're checking your hormones, thyroid, or ...