What is the medical term for a sudden and immediate cessation of cardiac contractions?

What is the medical term for a sudden and immediate cessation of cardiac contractions?

Cardiac arrest is a sudden loss of blood flow throughout the body resulting from the failure of the heart to pump effectively. It is a rapidly fatal medical emergency requiring immediate intervention with cardiopulmonary resuscitation (CPR) until further treatment can be provided.

Which term describes an abnormally rapid resting heart rate?

Tachycardia refers to a fast resting heart rate, usually over 100 beats per minute.

What pathologic condition describes a rapid but regular atrial or ventricular contractions?

Ventricular fibrillation – A condition in which the ventricles contract in a rapid, unsynchronized fashion. When fibrillation occurs, the ventricles cannot pump blood throughout the body. Ventricular tachycardia – An arrhythmia (abnormal heartbeat) in the ventricle characterized by a very fast heartbeat.

Which term describes a pounding or racing heart with or without irregularity in rhythm group of answer choices?

An arrhythmia describes an irregular heartbeat. With this condition, a person’s heart may beat too quickly, too slowly, too early, or with an irregular rhythm.

What is the period of contraction in the heart called?

Systole is the contraction phase of the cardiac cycle, and diastole is the relaxation phase.

What happens during sudden cardiac death?

Sudden cardiac arrest (SCA) is a condition in which the heart suddenly stops beating. When that happens, blood stops flowing to the brain and other vital organs. If it is not treated, SCA usually causes death within minutes. But quick treatment with a defibrillator may be lifesaving.

Why is my heart beating fast for no reason?

Most of the time, they’re caused by stress and anxiety, or because you’ve had too much caffeine, nicotine, or alcohol. They can also happen when you’re pregnant. In rare cases, palpitations can be a sign of a more serious heart condition. If you have heart palpitations, see your doctor.

When should I worry about a fast heart rate?

You should visit your doctor if your heart rate is consistently above 100 beats per minute or below 60 beats per minute (and you’re not an athlete), and/or you are also experiencing: shortness of breath.

Can PVCs be fatal?

There is some evidence from studies looking at these populations that PVC’s may lead to heart failure and potentially fatal and non-fatal arrhythmias such as inappropriate sinus tachycardia.

Is arteriosclerosis a heart disease?

Although atherosclerosis is often considered a heart problem, it can affect arteries anywhere in your body. Atherosclerosis can be treated. Healthy lifestyle habits can help prevent atherosclerosis.

What does the prefix Myo mean?

muscle
Myo- (prefix): A prefix denoting a relationship to muscle.

Which term means rapid irregular contractions of the ventricles?

Premature ventricular contractions (PVCs) are extra heartbeats that begin in one of your heart’s two lower pumping chambers (ventricles). These extra beats disrupt your regular heart rhythm, sometimes causing you to feel a fluttering or a skipped beat in your chest.