Mountains in every direction, This 5 acre parcel in the San Luis Valley in Costilla county, Colorado. The valley is surrounded by mountains on all sides. The Great Sand Dunes National Park is to the north, San Isabel Nation Forest is a short drive east, the Rio Grande is 5 miles to the west. Recreation abounds in this gorgeous high altitude valley.
Count the number of QRS complexes in one continuous lead where cardiac activity was monitored for the whole 10 seconds or in contiguous leads encompassing 10 seconds of cardiac activity. Multiply this number by 6 (10 x 6 = 60 seconds = 1 minute) to obtain the number of heartbeats per minute or the average heart rate.ow to determine the heart rate when it is lower than 50 beats per minute (regular rhythm): 1  Count the number of large squares between two successive R waves. 2  Divide 300 by the number of large squares obtained in #1. 3  The quotient is the heart rate (cardiac cycles per minute or heart beat per minute).
EKGs and stress tests are tests to find out if you are at risk for heart disease and heart attack. An EKG, or electrocardiogram, measures your heartâs activity.In an exercise stress test, you have an EKG while you walk or jog on a treadmill.or example, in 2010, Consumer Reports did a survey of nearly 1,200 people between the ages of 40 and 60. These people had no history or symptoms of heart disease. Yet almost half had had an EKG in the last five years. And almost one out of ten had an exercise stress test.