Premature atrial complexes (PAC) dysrhythmia has a cardiac complex that occurs too soon and may have abnormal p waves, but other than being ''early,'' has no other abnormal features.
<h3>What is Cardiology?</h3>
- Cardiology is a field of medicine that deals with problems with the heart and cardiovascular system.
- The term "cardiology" comes from the Ancient Greek words "kardi" (heart) and "-logia" (study).
- Heart failure, valvular heart disease, congenital heart defects, coronary artery disease, and electrophysiology are all covered in the field's spectrum of medical diagnosis and treatment.
- Cardiologists are among the professionals in internal medicine who work in this area.
- Pediatricians that specialize in cardiology are known as pediatric cardiologists.
<h3>Why does cardiac happen?</h3>
- Nearly all heart conditions that are known to exist can result in cardiac arrest.
- The electrical system of a damaged heart malfunctions most frequently during cardiac arrests.
- An aberrant heart rhythm like ventricular tachycardia or ventricular fibrillation is brought on by this defect.
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There is NOT a difference in speed between a car going forwards at 5 m/s and a car moving backwards at 5 m/s.
Speed is just the rate of change of the position of an object. It is calculated by dividing the change in position (distance traveled) by the time it takes to move said distance.
The distance between the two points is always positive because the direction does not matter.
However, if we are looking for the velocity, the direction DOES matter. In this example, the velocity moving forwards is 5 m/s while the velocity moving backwards is -5 m/s.
In other words:
<em>Speed </em>is looking at the <em>magnitude</em>
<em>Velocity </em>is looking at the <em>magnitude </em><em>and </em><em>direction.</em>
