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...complex''' is a significant component of the [[electrocardiogram]] (ECG or EKG), which represents the electrical depolarization of the [[ventricles]] of t ...m "QRS complex" is derived from the sequential labeling of the waves in an EKG. The Q wave is the first downward deflection, the R wave is the upward defl

...]]. The name "Long QT Syndrome" comes from the abnormal pattern seen on an EKG, which is used to measure the electrical activity of the heart. ...me" is derived from the distinctive pattern seen on an [[Electrocardiogram|ECG]] where the QT interval (the time between the start of the Q wave and the e

...nt") is a component of the [[Electrocardiogram|electrocardiogram]] (ECG or EKG) that represents the interval between ventricular depolarization and repola ...cardia". "Systole" (from the Greek ''systole'' meaning "a drawing together or a contraction") refers to the phase of the heartbeat when the heart muscle

...He is best known for the development of the [[electrocardiogram]] (ECG or EKG) and for the introduction of the term [[electrocardiography]]. ...Nobel Prize in Physiology or Medicine]] in 1924 for his development of the electrocardiogram.

...ocations on the chest and abdomen. When the electrodes are connected to an EKG machine by lead wires, the electrical activity of the heart is measured, in ...to assess the effectiveness of [[Cardiac medication|cardiac medications]], or to monitor cardiac function in patients with [[Heart disease|heart diseases

...trocardiograph]]''', which produces an '''[[Electrocardiogram]]''' (ECG or EKG). ...the heart chambers, the presence of any damage to the heart's muscle cells or conduction system, the effects of cardiac drugs, and the function of implan

...is electrical activity can be recorded on an [[Electrocardiogram]] (ECG or EKG). ...ythmia]]: This is a condition where the heart beats irregularly, too fast, or too slow. It can be caused by problems with the SA node.

...: /kɑːrˈdiːæk ˈmɒnɪtərɪŋ/) is a medical procedure that involves continuous or intermittent observation of the heart's activity, often through the use of ...g heart, while "monitoring" comes from the Latin "monere," meaning to warn or remind.

* [[Electrocardiogram]] (ECG or EKG): A recording of the electrical activity of the heart. * [[Arrhythmia]]: A condition in which the heart beats with an irregular or abnormal rhythm.

...the Greek words "dys" meaning bad or difficult, and "rhythm" meaning flow or rhythm. * Certain medications or substances, such as caffeine, alcohol, or drugs

...ontrolled clinical environment. The stress response is induced by exercise or drug stimulation. ...the Latin "exercitus", past participle of "exercere" meaning to keep busy or to work) and "test" (from the Old French "test", derived from the Latin "te

* [[Cardiovascular Surgery]]: Surgery on the heart or great vessels performed by cardiac surgeons. ...ectrocardiography]]: The process of producing an electrocardiogram (ECG or EKG), a recording - a graph of voltage versus time - of the electrical activity

...', is a group of conditions in which the heartbeat is irregular, too fast, or too slow. ...of blood and potentially lead to serious complications such as [[stroke]] or [[heart failure]].

Symptoms of CAD may not be evident until the artery is significantly narrowed or blocked. Common symptoms include: * Chest pain or discomfort (angina)

...of a pregnancy; can occur because of natural causes (called a miscarriage) or be a medical intervention * [[Acute]] - describes a condition or illness that begins suddenly and is usually short-lasting