Can what I eat help prevent future kidney stones? You may be able to prevent future kidney stones by making changes in how much sodium, animal protein, calcium, or oxalate you consume. A dietitian who specializes in kidney stone prevention can help you plan meals. You can make changes to what you eat based on the type of kidney stone you had.
Here are some simple steps on how to measure the PR interval: 1  Find the P-wave on the EKG strip. 2  Determine where the PR interval is, and to do this you start measuring at the beginning of the p-wave until the beginning of the QRS complex. 3  Count the SMALL boxes between there measurements.  Remember each box represents 0.04 seconds.
Your doctor will diagnose a heart attack based on your signs and symptoms, your medical and family histories, and test results. An EKG is a simple, painless test that detects and records the heart's electrical activity. The test shows how fast the heart is beating and its rhythm (steady or irregular). An EKG also records the strength and timing of electrical signals as they pass through each part of the heart. An EKG can show signs of heart damage due to coronary heart disease (CHD) and signs of a previous or current heart attack.