pulse

(noun)

Pressure waves generated by the heart in systole move the arterial walls, creating a palpable pressure wave felt by touch.

Related Terms

Examples of pulse in the following topics:

  • Pulse

    • Pulse varies with age; a newborn or infant can have a heart rate of about 130-150 beats per minute.
    • The heart rate may be greater or lesser than the pulse rate depending upon physiologic demand.
    • Radial pulse is commonly measured using three fingers, the finger closest to the heart is used to occlude the pulse pressure, the middle finger is used get a crude estimate of the blood pressure, and the finger most distal to the heart is used to nullify the effect of the ulnar pulse as the two arteries are connected via the palmar arches.
    • Where more accurate or longer term measurements are required pulse rate, pulse deficits, and much more physiologic data are readily and simplistically visualized by the use of one or more arterial catheters connected to a transducer and oscilloscope.
    • Measurement of the pulse can occur at several locations, including the radial artery shown here.

  • Meter

    • Meter involves the way multiple pulse layers work together to organize music in time.
    • Duple, triple, and quadruple classifications result from the relationship between the counting pulse and the pulses that are slower than the counting pulse.
    • In other words, it is a question of grouping: how many beats (secondary pulse) occur in each bar (primary pulse).
    • If counting-pulse beats group into twos, we have duple meter; groups of three, triple meter; groups of four, quadruple meter.
    • Simple and compound classifications result from the relationship between the counting pulse and the pulses that are faster than the counting pulse.

  • Checking Circulation

    • Checking circulation involves measurement of blood pressure and pulse through a variety of invasive and noninvasive methods.
    • Whilst a simplistic measurement of pulse rate is achievable by anyone trained medical staff are capable of much more accurate measurements.
    • Radial pulse is commonly measured using three fingers, the finger closest to the heart is used to occlude the pulse pressure, the middle finger is used get a crude estimate of the blood pressure, and the finger most distal to the heart is used to nullify the effect of the ulnar pulse as the two arteries are connected via the palmar arches.
    • Where more accurate or longer term measurements are required pulse rate, pulse deficits, and much more physiologic data are readily and simplistically visualized by the use of one or more arterial catheters connected to a transducer and oscilloscope.
    • The rate of the pulse is observed and measured by tactile or visual means on the outside of an artery and is recorded as beats per minute or BPM.

  • Rhythm

    • Beat - Beat also has more than one meaning, but always refers to music with a steady pulse.
    • It may refer to the pulse itself (as in "play this note on beat two of the measure").
    • On the beat or on the downbeat refer to the moment when the pulse is strongest.
    • Off the beat is in between pulses, and the upbeat is exactly halfway between pulses.
    • Beat may also refer to a specific repetitive rhythmic pattern that maintains the pulse (as in "it has a Latin beat").

  • Cardiac Cycle

    • These properties allow the arterial wall to distend when pressure increases, resulting in a pulse that can be detected by touch.
    • The pulse is the most straightforward way of measuring the heart rate, but it can be a crude and inaccurate measurement when cardiac output is low.
    • In these cases (as happens in some arrhythmias), there is little pressure change and no corresponding change in pulse, and the heart rate may be considerably higher than the measured pulse.

  • Beats

    • The superposition of two waves of similar but not identical frequencies produces a pulsing known as a beat.
    • This alternating is known as a beat because it produces an unpleasant pulsing sound.

  • Signs and Symptoms of Shock

    • This leads to a rapid, weak pulse due to decreased blood flow combined with tachycardia, cool, clammy skin due to vasoconstriction, and stimulation of vasoconstriction.
    • The symptoms of cardiogenic shock are similar to those of hypovolemic shock, with a weak pulse.
    • With anaphylaxis, hives may present on the skin, as well as localised edema, especially around the face, weak, and rapid pulse.

  • Longitudinal Waves

    • A sound wave contains pulses, which are the products of compressing the air (or other media) particles.
    • After compressing and releasing one end of the Slinky (while still holding onto the end), a pulse of more concentrated coils will travel to the end of the Slinky .
    • It is important to remember that energy, in this case in the form of a pulse, is being transmitted and not the displaced mass.

  • Cardiopulmonary Resuscitation (CPR)

    • If a person still has a pulse, but is not breathing (respiratory arrest), artificial respirations may be more appropriate, but due to the difficulty people have in accurately assessing the presence or absence of a pulse, CPR guidelines recommend that lay persons should not be instructed to check the pulse, while giving health care professionals the option to check a pulse.

  • Lorentz Transformations

    • Let's also assume that their coordinate systems coincide at $ t = 0$, and that one emits a light pulse at $t = t' = 0$ from $x = x' = 0$.