Chalkley waz ere.
It's because NO test is perfect! ECG's computer is very good at recognizing something not 'normal'. It may not be able to tell you exactly what's wrong, but it knows that it's not usual. That's good enough for a computer's reading. This is why you need someone who has seen many ECG to interpret it.
irregular ecg
If the ECG machine malfunctions you will need to redo the test. You can try unplugging the machine and replugging it to see if that resets the system.
You need to go to a qualified physician for an answer to this question, not to a website which cannot guarantee the accuracy of answers or the credentials of those giving answers.
ECG stands for ElectroCardioGram
Never. An ECG is a test, not an illness or disease.
An ECG provides information about the wearer of the ECG's heartrate and rhythm of the heart. It provides information about wether it is normal or abnormal.
The portion of the ECG that corresponds to atrial depolarization is called the P wave. The P wave is the first wave on the ECG.
You need to define it with first use, and then you may use the abbreviation throughout the rest of the paper i.e. electrocardiogram (ECG). This is due to the rule that you cannot assume that your audience will inherently know what ECG means.
Electrocardiogram is also known as ECG or EKG
It can be tested with something called an ecg simulator.
The ECG sign of subendocardial ischemia is ST segment depression. Note that ECG is used more now that EKG.