-
What does the PR interval measure?
Questioner：Noah Lee 2018-04-06 09:55:31
The most authoritative answer in 2024
-
-
Harper Adams——Studied at Stanford University, Lives in Palo Alto, CA
As a cardiac electrophysiologist, I specialize in the study of the electrical properties and functions of the heart. When it comes to interpreting electrocardiograms (ECGs), understanding the significance of various intervals is crucial. The PR interval is one such critical measurement. The PR interval measures the time it takes for an electrical impulse to travel from the atria to the ventricles through the atrioventricular (AV) node and bundle of His. It is measured from the beginning of the P wave, which signifies the start of atrial depolarization, to the beginning of the QRS complex, which marks the beginning of ventricular depolarization. A normal PR interval is typically between 120 and 200 milliseconds. read more >> -
-
Zoe Patel——Studied at the University of Melbourne, Lives in Melbourne, Australia.
In electrocardiography, the PR interval is the period, measured in milliseconds, that extends from the beginning of the P wave (the onset of atrial depolarization) until the beginning of the QRS complex (the onset of ventricular depolarization); it is normally between 120 and 200ms in duration.read more >>
about “PR interval、measured、P wave”，people ask：
- 70回复What is the role of the Na+ K+ pump?？
- 17回复What is the difference between the hypocenter and the epicenter of an earthquake?？
- 34回复What is the effect of an earthquake?？
- 78回复Are electromagnetic waves transverse or longitudinal waves?？
- 51回复How do you locate the epicenter of an earthquake?？
- 75回复How are transverse and longitudinal waves similar and how are they different?？
- 26回复How does the amplitude affect the sound?？
- 93回复What is the main cause of refraction?？
- 24回复What happens to the energy of a wave as the frequency increases?？
- 16回复What type of ground causes the most destruction?？
- 11回复What kind of a wave is light?？
- 42回复What are action potentials?？
- 27回复Why do surface waves tend to cause the most damage?？
- 56回复How do you get high potassium levels down?？
- 37回复What do I do during an earthquake?？
READ MORE：
- +1350What is Atpases?
- +1373What is proton pumping?
- +1864What is meant by automaticity of the heart?
- +1230Is depolarization systole or diastole?
- +1571Why does rigor mortis occur soon after death?
- +1404What is the T tubule?
- +1592Why do action potentials start at the axon hillock?
- +1477What are action potentials?
- +1824How are action potential and graded potential difference?
- +1798What is after hyperpolarization?
- +1769What happens in hyperpolarization?
- +1566What is depolarization?
- +1362What is an Isovolumetric process?
- +1884What is early repolarization pattern?
- +1335What is the P wave?
QuesHub is a place where questions meet answers, it is more authentic than Quora, but you still need to discern the answers provided by the respondents.
