CC STUDIO / SCIENCE PHOTO LIBRARY CC STUDIO / SCIENCE PHOTO LIBRARY
Taking blood sample. Needle and vacutainer being used to take a blood sample. The needle holder is being held by a medical worker's hand. The needle has been inserted into a vein (a process called venepuncture). A tourniquet (partly seen at top right) is used to make the veins more visible. The vacutainer is the tube inside the needle holder. It contains a partial vacuum that is drawing the blood (red) into the tube and out of the patient's arm. The sample of blood will be labelled and sent for testing.
Model release not required. Property release not required.