Worried about QT interval prolongation? This online evidence based resource will help guide you how to measure the QT interval and calculate the QTc value with an easy to use calculator …

Aug 25, 2023 · To get the most out of exercising, aim for moderate to vigorous exercise intensity. See how to judge your exercise intensity.

Oct 22, 2025 · A normal resting heart rate for adults ranges from 60 to 100 beats per minute. A heart rate above or below that may signal a health condition.

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Feb 28, 2024 · A blood pressure measurement over 180/120 mm Hg is called a hypertensive emergency or crisis. Seek emergency medical help for anyone with these blood pressure …

Mar 23, 2020 · Your respiratory rate is also known as your breathing rate. This is the number of breaths you take per minute. You can measure your breathing rate by counting the number of …

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Jan 18, 2024 · You might have some idea of how fit you are. But knowing for sure can help you set good fitness goals, see your progress and stay motivated. Once you know your starting …

Aug 18, 2023 · Pulse pressure may be a strong predictor of heart problems, especially for older adults.

Dec 20, 2023 · Beta blockers slow the heart rate. Taking a beta blocker can keep your heart rate from going up the way it usually does when you exercise. So you might not be able to reach …