JAMES KING-HOLMES / SCIENCE PHOTO LIBRARY JAMES KING-HOLMES / SCIENCE PHOTO LIBRARY
Normal vital signs. Screen display of a monitor in an intensive care unit showing normal cardiovascular vital signs. The coloured moving traces are from top: heart rate (green); arterial blood pressure (ABP, red); central venous pressure (CVP, light blue); pulmonary artery pressure (PAP, yellow); blood oxygen (PLETH, darker blue); respiration rate (white). In order to obtain these vital signs the patient is attached to electrocardiograph chest electrodes, pulsemeter and a blood gas probe. These vital signs determine the health of the heart and lungs, such as in a patient suffering heart failure. If any of these signs become abnormal an alarm will sound.
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