Intensive care monitoring. Woman patient lies in bed in an intensive care unit of a hospital while having her cardiovascular signs monitored. The patient is attached to chest electrodes (not seen), blood gas monitors, she receives oxygen through a respirator and nutrients through a naso-gastric tube. The screen in the background (at top) shows coloured moving traces of her vital signs. These are from top: heart rate (green); arterial blood pressure (ABP, red and yellow); central venous pressure (CVP, light blue); blood oxygen (dark blue); respiration rate (white). These vital signs enable the health of the heart and lungs to be determined.
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