Cardiac Monitoring and ECG Tracing

These flashcards cover key concepts related to cardiac monitoring, electrode placement, and ECG interpretation as per the provided lecture notes.

What is the primary goal when obtaining an ECG in EMS settings?

To obtain the ECG within less than 10 minutes of first contact with the patient.

What must electrodes be to ensure a reliable ECG?

Electrodes must be placed in consistent positions on each patient.

What is artifact in ECG readings?

Artifact refers to an ECG tracing with waves resulting from interference, such as patient movement, rather than the heart's electrical activity.

What should you do if an electrode is placed on a hairy chest?

Shave the body hair from the electrode site to ensure proper skin contact.

What should you do before applying electrodes to the skin?

Rub the electrode site briskly with an alcohol swab and let it dry.

How should the patient be positioned for the best ECG results?

The patient should be supine or in the semi-Fowler position if experiencing breathing difficulties.

What does a QRS complex represent on an ECG?

The QRS complex represents one contraction of the ventricles.

What indicates a tachycardia rhythm on an ECG?

If the QRS complexes are less than 3 mm wide and the heart rate is over 100 beats per minute.

What does a P wave represent in an ECG?

The P wave represents the contraction of the atria.

What is a potential indication of a myocardial infarction on a 12-lead ECG?

Elevation of the ST segment above the baseline.