cardiac pacs - HEALTHY
SAN FRANCISCO, CA — Knowing the number of hourly premature atrial contractions (PACs) a patient has is as good as the Framingham atrial fibrillation (AF) risk algorithm in predicting five- to 15-year ... Cardiac muscle tissue has autorhythmicity, the unique ability to initiate a cardiac action potential at a fixed rate—spreading the impulse rapidly from cell to cell to trigger the contraction of the entire heart. The meaning of CARDIAC is of, relating to, situated near, or acting on the heart.
Context Explanation
How to use cardiac in a sentence. To define cardiac, it is essential to understand its connection to the heart and overall cardiovascular health. Derived from the Greek word “kardia,” meaning heart, the term is used to describe anything related to the heart’s function, structure, and conditions that may affect it. Cardiac muscle responds to exercise in a manner similar to that of skeletal muscle.
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That is, exercise results in the addition of protein myofilaments that increase the size of the individual cells without increasing their numbers, a concept called hypertrophy. Serious cardiac symptoms include chest pain or discomfort, dyspnea, weakness, fatigue, palpitations, light-headedness, sense of an impending faint, syncope , and edema. These symptoms are common in multiple cardiac diseases as well as in noncardiac diseases. Your heart has a special electrical system called the cardiac conduction system. This system controls the rate and rhythm of the heartbeat.
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With each heartbeat, an electrical signal travels from the top of the heart to the bottom. As the signal travels, it causes the heart to contract and pump blood. The heartbeat process includes the following ... MSN: Premature Atrial Contractions PACs Nursing NCLEX Review, Mnemonics | ECG interpretation