Can a ekg or holter monitor show past heart attacks?

Yes and No. EKG can show some changes in Q and S waves and ST. Elevation may suggest old myocardial infarction. Hotter monitor is a device that registers heart rhythms/ rate for an extended period of 24-48 hrs. It's main use is to diagnose various types of heart blocks.
MI/ CAD. AN EKG is the first step and will show evidence of past Q wave Heart attacks. Subtle changes may suggest early primary artery disease. Then a stress test or stress thallium is done to define the anatomy. A holter/event monitor is done to evaluate palpitations or syncope . .
Yes. Most times the ekg can show signs of old or previous heart attacks . A 12 lead ekg is a good start . More definite results can be seen on ECHocardiogram.
Sometimes. an ECG can show evidence of prior heart attack. A Holter will only show current heart rhythm.

Related Questions

Is it possible that an underlying heart problem go undetected by an ekg/holter monitor?

Depends. Usually a physician orders a holter if you have palpitations. If you had palpitations during the holter recording and no abnormality is noted then that is a good thing. If your palpitations occur infrequently you might need a longer recording period using an event monitor. There may be structural heart problems or problems with coronary arteries which may not be evaluated by ekg or holter. Read more...

I have heart palps that have been going on for almost a year, ekg, 24 holter monitor showed no results. What could this be? What should I do?

U need a diagnosis. Most palpitations turn out to be related to anxiety. However you need to be wearing a monitor while you are having symptoms to establish a diagnosis. An event monitor can be worn for up to 4 weeks. If you were having palpitations during your 24 hr hm you know the diagnosis. Read more...

Past few weeks heart rate high 0ver 115bpm xrays, holter monitor, ekg all normal thyroid a lil low now heart rate normal again without meds y?

115bpm. A low thyroid could lower your heart rate. You should first see an endocrinologist to optimize your thyroid levels. Once that is controlled it would be wise to recheck your potential heart issues. Read more...

27 year old female, 5'6, " 262.4 lbs, ekg: normal, holter monitor (48 hours): normal, cholesterol: ldl- 111, hdl- 49. Chest pain related to heart?

Chest pain. Not enough data for more than a guess. Its probably not cardiac related, BUT, you are at increased risk. You are morbidly obese and weigh roughly 100 #s more than you should. Each pound of flesh equals about a mile of blood vessels. So, your heart, a pump the size of your fist has to pump blood 100 miles further than it should. If you smoke, use illicit drugs or drink the risk is higher. Read more...

Had EKG echo blood tests & holter monitor for two weeks all normal. Still experience heart racing randomly off & on & palpatations. What could this be?

Depends. If you had symptoms during the monitoring and no correlating arrhythmia was seen, then the sensation was not truly due to heart racing. However if you did not have symptoms during monitoring, you might consider doing longer monitoring. Read more...
Arrhythmia. You did not say if you had any palpitations during the holter monitoring recording period. If you did, the arrhythmia (if there is one) should have been caught on paper. If not, you need to be monitored until you do catch it on paper. There are exetnded monitors, event recorders, etc., that can help - see your doctor. Read more...