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An electrocardiogram or EKG provides doctors with a simple test that records the electrical activity of the heart. The test may help detect and locate the source of problems within the heart.
Your heart works by contracting certain sections of the heart muscle in a certain order. This contraction forces blood to move within the heart’s chambers. An electrical signal tells the different sections when to contract and when to rest. An EKG detects and records this signal as it travels across the heart.
An EKG may uncover a number of problems with the heart including:
Reduced blood flow to the heart muscle
Irregular heart beats
Problems with the heart not beating forcefully enough
Enlargement of the heart
Diseases of the heart’s valves
The EKG recording not only shows what your child’s heart is doing at the time of the test, it also indicates problems your child may have faced in the past such as a previous heart attack. A previous EKG can be used as comparison to help detect problems.
Why does my child need an EKG?
EKG helps evaluate signs and symptoms that indicate heart problems. Children who are experiencing chest pain, difficulty breathing, extreme fatigue or unusual heart sounds that are found during an exam, may need an EKG. If your child reports that his or her heart has been pounding, racing, fluttering or seems to be beating unevenly, then her doctor may order an EKG.
Children with a close family history of heart disease (father, mother or sibling) may also need to have EKGs to help detect heart disease in earlier, more treatable stages. Your child’s doctor may schedule an EKG before a surgical procedure.
How is an EKG performed?
An EKG is a simple and painless test. A technician attaches 12 sticky patches to different points on the chest, arms and legs. A wire will be fastened to the patch and will feed information into the EKG machine.
Once the wires or leads are connected, your child will be asked to lie quietly on a table while the EKG machine records the electrical activity of her heart. The machine prints out a tracing of each lead’s activity on special graph paper. A physician will then review the printout and interpret the results. The entire test takes only about 10 minutes.
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