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How a Healthy Heart Works

Your heart is meant to pump oxygen-rich blood and nutrients to organs and other parts around your body. The following figure demonstrates this. The Four Pumping Chambers of the Heart Veins carry blood lacking oxygen from the body to the heart’s right atrium. There, the blood comes to the right ventricle, which pumps this blood […]

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Lung and Oxygen Tests

Heart symptoms and lung problems tend to come hand in hand. Below are some tests used to discover problems with the heart and lungs: Pulse oximetry. This measures how well the heart is delivering oxygen throughout the body. A clip is attached to a finger, and shines an infrared light through the skin, registering how much […]