My husband was diagnosed with secondary polycythemia in 2011. His hematocrit test (HCT) was 57%. He was referred to a hematologist. The hematologist would order a phlebotomy when his HCT was high. My ...

The Galleri test, by American company GRAIL, can detect over 50 types of cancerous DNA with a simple blood test. How the cancer screening test works.

This article was reviewed by Darragh O’Carroll, MD. Understanding Blood Tests: How They Work and What They Can Tell You Blood tests are one of the … ...

MONDAY, Nov. 10, 2025 (HealthDay News) — Blood tests might be able to tell how badly a concussion has rung a person’s bell, a ...

Commercial, paid medical screening like blood tests, whole body MRIs and DEXA scans, which can evaluate bone density and ...

Hardcore endurance athletes have tracked the metric for decades, but it is increasingly touted as a measure of fitness and health for the average person.

My husband was diagnosed with secondary polycythemia in 2011. His hematocrit test (HCT) was 57%. He was referred to a ...

My husband was diagnosed with secondary polycythemia in 2011. His hematocrit test (HCT) was 57%. He was referred to a hematologist. The hematologist would order a phlebotomy ...