A new study suggests Alzheimer’s research may soon move beyond hospitals, using nothing more than a few drops of blood ...

A new device for taking blood samples uses microneedles and a suction cup instead of a large needle. People with a phobia of needles stand to benefit. More blood can be obtained than with the classic ...

A blood osmolality test measures the blood for the concentration of certain dissolved particles. This test can show whether a person has an irregular balance of fluids in their body. Osmolality tests ...

I keep asking my cousins about their blood. I ’ve already exhausted my siblings. Who has low platelets in this family? Speak up now! I need to see if there’s a genetic trail. My blood has been coming ...

The blood test that detects nicotine is called a cotinine test. It measures recent tobacco use and exposure. Cotinine is a chemical that comes from the breakdown of nicotine in the body. A blood test ...