Most of the people should not know what an ECG machine is and
how it works. But it is more familiar to the doctors and person which are
engaged in the medical field. It is the common as well as important medical
device which is to be found in the hospitals. Before further more discussion on
ECG machine we should know that what is the full form of ECG?
ECG stands for Electrocardiogram. Now a question arises in
our minds that what is its meaning? So it is used to measure and record the electrical
activity of heart for a time period. Some electrodes are attached to the skin
of the patient which helps in recording of the electrical activity of heart of
the patient and the readings are shown in a machine that is connected to the
electrodes. Readings are in the form of sound impulses. By seeing these
impulses a doctor can identify are your heart works well or not. There are some
up and downs in these impulses according to the condition of the patient. In
this approach, the magnitude and direction of the heart's electrical change are
captured at every moment throughout the oscillation. The graph of voltage
versus time created by this noninvasively procedure is an ECG. The overall goal
of performing arts diagnostic technique is to get data concerning the structure
and performance of the guts. Medical uses for this data square measure varied
and usually relate to having a necessity for data of the structure perform.
Why ECG is used?
There are
some factors which are determined by an ECG machine which are given below:
·
Rate
of heart beats
·
Opening
of closing of heart of chambers
·
Regularity
of heart beats
·
Is
there any damage or problem present in the heart
·
Determine
the effects of any drugs or medicines
·
Suspects
any problem related to the breathing
·
Suspects
structural heart diseases
·
A
third heart sound, fourth heart sound, a murmur or different findings to
counsel structural heart condition.
·
Perceived
internal organ dysrhythmias either by pulse or palpitations.
·
Monitoring
of known internal organ dysrhythmias.
·
Monitoring
the consequences of a heart medication.
·
Assessing
severity of solution abnormalities, like hyperkalemia.
·
As
a vicinity of a pre-operative assessment someday before a surgery.
Components of ECG machine:
ü Safety features present for both
patient as well as operator because an ECG machine works with help of
electricity and the electrodes are attached to the body of patient so it must
to have safety measures.
ü Sometimes it is necessary to have
some electric signals are provided to the heart of the patient so it should be
noticed that the ECG machine must be safe from these signals as they can damage
the machine.
ü The common ECG machine should have a
keyboard, screen, printer and a small wheeled car.
ü Any electrocardiogram employed in aid
is also connected to someone World Health Organization needs medical care and
also the cardiograph has to defend itself from this supply of energy.
Working of ECG machine:
ECG records
the electrical activity generated by heart muscle depolarization, which propagate
in pulsating electrical waves towards the skin. Although the electricity
quantity is if truth be told terribly little, it may be picked up faithfully
with graph electrodes connected to the skin (data unit: potential unit, UV).The
full ECG setup comprises at least four electrodes which are placed on the chest
or at the four extremities according to standard nomenclature (RA = right arm;
LA = left arm; RL = right leg; LL = left leg). Of course, variations of this
setup exist in order to allow more flexible and less intrusive recordings, for
example, by attaching the electrodes to the fore arms and legs. ECG electrodes area unit generally
wet sensors, requiring the employment of a semiconducting gel to extend
conduction between skin and electrons. The procedure is shown in the diagram
below:
