Clearly disclose filtering so physicians can more easily identify original vs.Limit filtering so not to sacrifice potentially lifesaving waveform data.Governing bodies like the ACC, AHA and HRS publish adult and pediatric guidelines providing guidance to: The problem with overly filtered ECGs is that physicians may not know what they’re missing.įiltering is beneficial if the filters are set to an appropriate threshold, and if the interpretive algorithm still looks at the original versus the processed waveform. While filtering can yield a clean-looking ECG, too much filtering can distort or remove authentic waveform data. In so doing, it’s intended to help physicians see waveform data more clearly, making ECGs easier to read and to interpret. 3ĮCG filtering removes noise from ECG recordings. 2 Some lead reversals can be difficult to discern as an error and may lead to physicians incorrectly identifying arrhythmia where there is none. 1 According to the ACC and AHA, 5% of all ECGs performed are done with a lead reversal. In fact, when it comes to an inaccurate ECG interpretation, the top factor cited is precordial electrode misplacement. Proper electrode placement is also critical. Taking a few extra moments for patient prep can lead to higher quality exams the first time.Most sources of artifact are preventable-addressing them can avoid the need for retesting.Artifact has the potential to affect, or even misdirect, clinical decisions.Patients may have an ECG at any number of facilities at any time, so comparing new to previous ECGs requires consistency in prep practices.To overcome such objections, consider the important implications: This approach to prepping patients may be met with some resistance from clinicians, due to longstanding processes or perceived limitations.
#Ecg artifact meaning skin#
Abrading skin to remove dead skin cells.Drying the skin for better electrode attachment.
All of these sources of poor conductivity can lead to artifacts. For example, hair prevents electrode contact, dead skin does not conduct well, and oils, lotions and gels can leave a film. If proper techniques have not been followed, ECG interpretation may be compromised even before it begins.Ĭapturing the electrical activity of the heart via electrodes is impacted by the fact that skin can be a poor conductor of electricity. High-quality ECG waveforms require good practices when prepping the patient and placing electrodes. Below are three important areas of concern and steps that can be taken to help ensure an accurate ECG interpretation.
A number of factors impact the data captured by an ECG, with consequences for how that data is then used in diagnosis and treatment decisions. If clinicians overlook the fundamentals in conducting proper ECGs, the resulting interpretations, diagnoses and patient treatment plans may be fundamentally impacted as well. An ECG test may be the first thing you do if you suspect a patient has cardiac issues-and it may be the most important thing you do all day.
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