Enter the change in pressure across the circulation loop and the flow through the vasculature into the calculator to determine the TPR.

## TPR Formula

The following formula is used to calculate TPR (total peripheral resistance).

TPR = P / Q

- Where TPR is the total peripheral resistance
- P is the change in pressure across the circulation loop
- Q is the flow rate through the vasculature

To calculate TPR, divide the pressure change by the flow rate.

## What is TPR?

Definition:

TPR, short for total peripheral resistance, is a measure of the total amount of force exerted on circulating blood by the vasculature of the body.

## How to calculate TPR?

Example Problem:

The following example outlines how to calculate TPR.

First, determine the total change in pressure across the circulation loop. In this example, this is found to be 50. Note that these values may not be realistic and are used to purposes of showing the calculation.

Next, determine the flow rate across the vasculature. For this case, the flow rate is found to be 10.

Finally, calculate the TPR using the formula above:

TPR = P / Q

TPR = 50/10

TPR = 5