IAN HOOTON / SCIENCE PHOTO LIBRARY IAN HOOTON / SCIENCE PHOTO LIBRARY
Obstetric examination. Midwife (left) taking a blood sample from the arm of a pregnant woman during a home visit. Regular check- ups are necessary during pregnancy so that the development of the baby and the health of the mother can be monitored. Blood can be tested to provide information on the mother's nutrition, for example blood glucose levels, and levels of hormones and antibodies. This woman is six and a half months (28 weeks) pregnant.
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