You may or may not know this but there are a few different types of blood pressure log with each serving a different purpose. For this reason alone, using a printable blood pressure log is crucial. Provided you keep it updated, you or your doctor can use the blood pressure log to diagnose your health after fixed intervals of time. What is a blood pressure log and what does it help to do? One of the easiest ways to keep track of your blood pressure, a blood pressure log is used every time you measure your blood pressure. When it comes to keeping a tab on blood pressure, one of the best ways to perform this action is using a blood pressure log. The key elements of a blood pressure log sheet.Keeping your blood pressure under control.