what experiment do you conduct to know the relationship between heart and pulse rate
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Pulse rate
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Introduction
Pulse wave .jpg
Pulse/heart rate is the wave of blood in the artery created by contraction of the left ventricle during a cardiac cycle. The strength or amplitude of the pulse reflects the amount of blood ejected with myocardial contraction (stroke volume). Normal pulse rate range for an adult is between 60-100 beats per minute. A well-trained athlete may have a resting heart rate of 40 to 60 beats per minute, according to the American Heart Association (AHA).[1]
Types of Pulse rate
Peripheral pulses that can be felt at the periphery of the body by palpating an artery over a bony prominence. Examples are carotid, radial and popliteal pulses
Apical pulses which is a central pulse located on the apex of the heart that is monitored using a stethoscope.[2]
Factors that Influence Heart Rate
Age
Sex
Emotions/stress
Exercise
Medication[2]
How to Check Pulse
Pulse site
Temporal
Carotid
Brachial
Radial
Femoral
Popliteal
Dorsalis pedis[2]
It is easiest to take the pulse at the wrist. If you use the lower neck, be sure not to press too hard, and never press on the pulses on both sides of the lower neck at the same time to prevent blocking blood flow to the brain.
Pulse.jpg
When taking your pulse:
Using the first and second fingertips, press firmly but gently on the arteries until you feel a pulse.
Begin counting the pulse when the clock's second hand is on the 12.
Count your pulse for 60 seconds
When counting, do not watch the clock continuously, but concentrate on the beats of the pulse.
If unsure about your results, ask another person to count for you.
Parameters of Pulses
Rate: Number of pulsation which could be Bradycardia (<60/minute) or Tachycardia (>100/minute)
Rhythm: Time interval between pulse beats[2]
Bradycardia
Reduced pulse rate
Pulse Rate <60/min[3]
Indications of reduced pulse
Infection (e.g. myocarditis)
Complication of heart surgery
Hypothyroidism
Medication
Inflammatory diseases such as rheumatic fever[4]
Symptoms
Near-fainting or fainting (syncope)
Dizziness or lightheadedness
Fatigue
Shortness of breath
Chest pains
Confusion or memory problems
Easily tiring during physical activity
Types
There are two basic types of bradycardia:
Sick sinus syndrome is common in elderly but can occur at any age. It occurs when the sinus node (the heart's own pacemaker) fails and does not reliably trigger heartbeats.
Heart block is the interruption of the electrical impulses on their way to the ventricles and results in a slow. It can be partial or complete.
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