Heart Rate

Heart Rate - Search results - Wiki Heart Rate

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  • Thumbnail for Heart rate
    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)...
  • Thumbnail for Heart rate variability
    Heart rate variability (HRV) is the physiological phenomenon of variation in the time interval between heartbeats. It is measured by the variation in the...
  • Thumbnail for Tachycardia
    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...
  • Thumbnail for Heart rate monitor
    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...
  • Thumbnail for Bradycardia
    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...
  • Thumbnail for Cardiotocography
    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...
  • Thumbnail for Heart
    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...
  • Thumbnail for Arrhythmia
    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...
  • Thumbnail for QT interval
    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...
  • Thumbnail for Atrial fibrillation
    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...
  • Thumbnail for Cardiac 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...
  • Thumbnail for Shock (circulatory)
    circulatory system. Initial symptoms of shock may include weakness, fast heart rate, fast breathing, sweating, anxiety, and increased thirst. This may be...
  • Thumbnail for Electrocardiography
    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...
  • Thumbnail for Postural orthostatic tachycardia syndrome
    (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 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...
  • Thumbnail for Baroreflex
    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)...
  • 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...
  • Thumbnail for Heart failure
    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...
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