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American Heart Association Training Courses in Maryland, Delaware, Virginia, Washington, D.C.
Category Archives: Guide
Understanding the PQRST Wave: A Guide to ECG Interpretation
Electrocardiography (ECG or EKG) is a simple, non-invasive test that records the heart’s electrical activity using small electrodes placed on the skin. These signals produce waveforms like the P wave, QRS complex, T wave, and occasionally the U wav...
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Shock: Causes, Symptoms, and Medical Treatment
The word “shock” has two different meanings in Psychology: Shock is an emotional response to a traumatic event, like sudden grief or fear, that leaves someone feeling numb or overwhelmed. Physiology: Shock is when your body doesn’t ...
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