Blood sampling. Potential blood donor having a drop of blood collected from a pricked finger. The blood is tested for its haemoglobin levels, by dropp

---

Blood sampling. Potential blood donor having a drop of blood collected from a pricked finger. The blood is tested for its haemoglobin levels, by dropping it into the blue liquid at right, before a donation is accepted. Haemoglobin is the red-coloured pigment in red blood cells that is involved in oxygen transport. A low concentration of haemoglobin indicates a low red blood cell count (anaemia), meaning that a blood donation could be potentially harmful to the donor. Donated blood is given to patients in transfusions to replace lost blood, for example during surgical procedures or after accidents.

---

Size: 4064px × 2704px
Photo credit: © MICHAEL DONNE/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: anaemia, anemia, apparatus, bleeding, blood, donor, equipment, female, finger, fingers, haemoglobin, hand, hands, healthcare, jab, lance, letting, levels, medical, medicine, national, pin, prick, sample, sampling, service, test, testing, transfusion, woman