WILL & DENI MCINTYRE / SCIENCE PHOTO LIBRARY WILL & DENI MCINTYRE / SCIENCE PHOTO LIBRARY
Blood sample. Gloved hand holds a vacutainer (sterile tube) with a newly drawn blood sample. On the background screen is a network of blood vessels. A vacutainer is a small test-tube that sucks in blood once a needle has punctured a vein. Surgical gloves help to maintain a sterile environment.
Model release not required. Property release not required.