Rr Interval Calculator

Using the RR Interval Calculator

This guide will walk you through each step to effectively use the RR Interval Calculator to find the RR Interval and Frequency from a given heart rate. Follow the instructions carefully to ensure accurate results.

Step 1: Input Heart Rate

Begin by locating the input field labeled Heart Rate (bpm). This field requires you to enter the heart rate in beats per minute, which is an essential parameter for the calculation.

• Ensure the heart rate value is within the valid range. It must be between 20 and 250 bpm.
• Enter the heart rate value into the provided field. Note that only whole numbers are accepted as input.

Step 2: Select Measurement Unit

Next, proceed to the input field labeled Result Unit. This selection determines the unit of measurement for the RR Interval outcome.

• Click on the dropdown menu to see the available options.
• Select your preferred unit of measurement: either Milliseconds (ms) or Seconds (s).
• This choice impacts how the RR Interval will be computed and displayed.

Step 3: Obtain the Results

Once you have provided the necessary input values, the calculator will automatically process the information to provide two results: RR Interval and Frequency.

• The RR Interval is computed based on your selected measurement unit:
  • If you chose Milliseconds, the RR Interval is calculated by the formula ( frac{60000}{text{heartRate}} ) and displayed with three decimal places and “ms” as the suffix.
  • If you opted for Seconds, the RR Interval is determined by the formula ( frac{60}{text{heartRate}} ).
• The Frequency, denoting heart rate frequency in Hertz (Hz), is calculated by dividing the heart rate by 60. This result is displayed with two decimal places and “Hz” as the suffix.

Review the results displayed in their respective fields to gain insights into the patient’s heart rate characteristics in terms of RR Interval and Frequency.