A phlebotomist is a healthcare professional trained to collect blood samples. Many different professionals work together as part of a medical team. Each team member has their role and responsibilities ...

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 ...

The practice of drawing blood has changed very little over the decades. It looks about the same now as it did 50 years ago. That process, however, may be about to get a modern makeover. Several health ...