My doctor did an EKG, and said the results looked as though I probably have a blockage. I am going in for further tests today, mainly an in-depth stress test (I think the one where they inject you with something).
So, yes, I suppose an EKG can at least show signs that there may be a blockage. I have read that it can show if the heart is receiving insufficient oxygen, which then is assumed to be some sort of blockage.
However, I have also heard that EKGs can show false positives a lot, so it's best to check with your doctor and go through all the steps they deem necessary to ensure you are ok!
One of the most important reasons for obtaining an ECG is to help evaluate the patient who presents with new-onset chest pain. I assume you had an EKG due to chest pains, etc. The EKG output will show a prior infract (dead heart cells), acutely infracting or ischemic (lack of blood/oxygen). The conditions are recognized as electrical impulses react differently when passing through damaged and ischemic heart tissue. One of the 12 leads will mark the location of the condition.
As such it will show area of the heart is involved, how extensive is the involvement, are other abnormalities present (i.e., AV block, conduction defects, arrhythmias) and most importantly, is the patient a candidate for acute intervention. Your medical history, symptoms, signs, etc. together with the EKG helps make a dx. If EKG is positve, further testing is usually necessary to substantiate.
The Content on this Site is presented in a summary fashion, and is intended to be used for educational and entertainment purposes only. It is not intended to be and should not be interpreted as medical advice or a diagnosis of any health or fitness problem, condition or disease; or a recommendation for a specific test, doctor, care provider, procedure, treatment plan, product, or course of action. MedHelp is not a medical or healthcare provider and your use of this Site does not create a doctor / patient relationship. We disclaim all responsibility for the professional qualifications and licensing of, and services provided by, any physician or other health providers posting on or otherwise referred to on this Site and/or any Third Party Site. Never disregard the medical advice of your physician or health professional, or delay in seeking such advice, because of something you read on this Site. We offer this Site AS IS and without any warranties. By using this Site you agree to the following Terms and Conditions. If you think you may have a medical emergency, call your physician or 911 immediately.