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PacifiCheck > Glossary > Electrocardiograph




Electrocardiogram (ECG)

Electrocardiogram (ECG or EKG) is one of the most common tests for
coronary heart disease. Electrocardiogram is produced by Electrocardiograph. Electrocardiogram is simple and often very valuable. However, this must be viewed
in the light of the history, physical findings, and results of other investigations,
together with its limitations. The resting Electrocardiograph test could be entirely
normal in the presence of severe coronary artery disease. Even if it demonstrates
the presence of ischaemia, Electrocardiograph cannot confirm the exact anatomical distribution or the severity of damage in the coronary artery involved. 

Exercise Stress Test (Treadmill)

Exercise stress test is used to record continuously the Electrocardiograph during
a fixed set of exercises, usually walking on a motorized treadmill.  The exercise lasts
6 to 12 minutes depending on the fitness of the person. When a person with heart problem exercises, the workload of the heart is increased, thus requiring additional supply of oxygen that may not be available. This activity could result in chest pain or
an irregular heartbeat. The test should be terminated if the patient experiences
severe chest pain, serious irregular heart rhythms, or abnormal change in blood pressure.
Patients with severe anginal attacks, dangerous irregular heart rhythm, heart failure, uncontrolled high blood pressure, should not take the exercise stress test.