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Heart rate (or pulse rate) is the frequency of the heartbeat measured by the number of contractions of the heart per minute (beats per minute, or bpm)... |
Heart rate variability (HRV) is the physiological phenomenon of variation in the time interval between heartbeats. It is measured by the variation in the... |
Tachycardia (redirect from Elevated heart rate) also called tachyarrhythmia, is a heart rate that exceeds the normal resting rate. In general, a resting heart rate over 100 beats per minute is accepted... |
audio sample of heart rate monitor Problems playing this file? See media help. A heart rate monitor (HRM) is a personal monitoring device that allows... |
Bradycardia (redirect from Slow heart rate) Bradycardia, also called bradyarrhythmia, is a resting heart rate under 60 beats per minute (BPM). While bradycardia can result from various pathologic... |
Cardiotocography (redirect from Heart rate, fetal) fetal heart rate and the activity of the uterine muscle are detected by two transducers placed on the mother's abdomen, with one above the fetal heart to... |
to the heart through venules and veins. The heart beats at a resting rate close to 72 beats per minute. Exercise temporarily increases the rate, but lowers... |
Arrhythmia (redirect from Irregular heart rate) arrhythmias, heart arrhythmias, or dysrhythmias, are irregularities in the heartbeat, including when it is too fast or too slow. A resting heart rate that is... |
QT interval (redirect from Correction for heart rate) increase in heart rate. For example, taking normal QTc ≤ 0.42 s, QT would be expected to be 0.42 s or less at a heart rate of 60 bpm. For a heart rate of 70 bpm... |
Atrial fibrillation (section Rapid heart rate) by symptoms related to a rapid heart rate. Rapid and irregular heart rates may be perceived as the sensation of the heart beating too fast, irregularly... |
Cardiac monitoring (section Heart rate monitoring) Wearable optical heart rate monitors are less reliable than electrode-based heart rate monitors. The accuracy of the wearable optical heart rate monitors varies... |
circulatory system. Initial symptoms of shock may include weakness, fast heart rate, fast breathing, sweating, anxiety, and increased thirst. This may be... |
Electrocardiography (redirect from Heart axis) normal heart, the heart rate is the rate at which the sinoatrial node depolarizes since it is the source of depolarization of the heart. Heart rate, like... |
(POTS) is a condition characterized by an abnormally large increase in heart rate upon sitting up or standing. POTS is a disorder of the autonomic nervous... |
lower resting heart rate, lower blood pressure, and increased resting or basal metabolic rate.[citation needed] By measuring heart rate we can then derive... |
Doppler fetal monitor (redirect from Doppler fetal heart rate monitor) Doppler effect to provide an audible simulation of the heart beat. Some models also display the heart rate in beats per minute (BPM). Use of this monitor is... |
Baroreflex (section Effect on heart rate variability) blood pressure causes the heart rate to decrease. Decreased blood pressure decreases baroreflex activation and causes heart rate to increase and to restore... |
Heart rate turbulence (HRT) is a baroreflex-mediated adjustment of heart rate which acts as a counter-mechanism to premature ventricular contraction (PVC)... |
Bainbridge reflex (section Control of heart rate) or Bainbridge effect, also called the atrial reflex, is an increase in heart rate due to an increase in central venous pressure. Increased blood volume... |
Heart failure (HF), also known as congestive heart failure (CHF), is a syndrome caused by an impairment in the heart's ability to fill with and pump blood... |