Low cardiac reserve

What does "Low cardiac reserve" mean in a report or doctor's letter? In our medical dictionary, you will find a patient-friendly explanation of the meaning of this medical term.

Explanation

Low cardiac reserve refers to the heart's reduced ability to pump additional blood when the body needs it, such as during exercise or stress. It's like a car engine that can't speed up when you press the gas pedal. This condition often occurs when the heart is weakened by disease or damage. As a result, a person with low cardiac reserve may feel tired or short of breath during physical activity.

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