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).
EKG. This is a painless, noninvasive test that checks your heartâs function by recording the electrical activity of different areas of the heart as wavy lines on a piece of paper. An EKG may be performed to check for a variety of issues: 1  Irregular heartbeat. 2  Damage to heart muscle and tissue.